Midi and Mini Bus Specs-Revised -1June12_V2

7/28/2019 Midi and Mini Bus Specs-Revised -1June12_V2

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Description

Mini Buses

SN Bus Floor heights mmMini buses Max floor ht

800 mm

400 mm floor height 650 mm

floor

height

Defination of low floor area

1Propulsion System -

ICE.Electrical, Hybrid, Fuel Cell

2 Fuels-options

3 Engine

3.1 Fuel recommended

3.2Engine HP sufficient to provide

:

iRated performance at GVW in a

stop/start urban operations

ii An acceleration (meter/sec/sec) ≥ 0.8 m/s/s

iii Attain Bus speed of 0-30 kmph in

iv Max speed

vGradeability frm stop at GVW

17 percent

viUninterrupted Power to auxiliary

gadgets incl. ITS,PIS√

viiRated HP / torque preferrably at

lower rpm/rpm range

3.3Maximum Fuel efficiency kmpl or

kmpkg

3.4 Emission norms BSIII/BS IV

75 kmph

Max Engine torque required at lower range of RPM and

spread over a wider range of RPM

to be specified for various fuels by vehicle manufacturer

Proposed Specs for Mini and Midi urban buses

Internal Combustion Engine

Diesel / CNG / ULSD/LPG/Bio-diesel

Fuel compatible engine

Diesel / CNG / ULSD

Max vehicle speed of upto 75 kmph bus GVW

Definition of Low Floor area as

per DTC documents – “Lowfloor area shall not be less than

50% of the total saloon area

(excluding front wheel boxes

and driver’s cab) and shall not

≤ 10 secs

√

BSIII/BS IV

Midi buses

≥ 0.8 m/s/s

17 percent

Bus specifcations of type I, Ordinary (Non D

Bus charac



3.5Engine management(Electronic

Management)

3.6 Engine Operational requirements

3.7 Engine Location (Front / rear) Optional

4Transmission-heavy duty-

Preference as I/II/III

i Automated Manual Transmission( I

ii

Manual - Synchromesh - forward

speeds(min 5) & constant mesh on

reverse gear(MT)

II

iii Automatic Transmission III

ivColumn or floor - Column or floor

(Optional) √

4.1 Operational Safety

5Clutch (where applicable)

6 Rear Axle

7Front Axle

8 Steering system

9 Suspension System

i Front

ii Rear

iii Kneeling (mm)

iv Anti roll bars /stabilizers

vShock absorbers

viControls (optional)

Both front and rear

Transmission system be fitted with a mechanism

which makes it possible to engage reverse gear only

when vehicle is stationary

Engine oil Pressure, Engine Coolant temperature, Engine

Speed in RPM, Vehicle Speed, Engine % load (Torque),

Engine should be able to operate efficiently at

ambient temperatures of approximately 0o

to 50oC,

humidity level from 5% to 100%, and altitude

levels of upto 2000 meters , generally operating in

the semi arid zone / hilly region prevailing in thearea.

Hydraulic double acting 2 at front & 4 at rear

Electronically controlled air suspension system

√

III

air bellows - 2 nos.


60mm entry/exit side severally&collectively

Dry, Single plate, Power assisted operation

Single reduction, hypoid gears, full floating axle shaftswith optimal gear ratios suitable for urban operations

Heavy duty reverse elliot type Axle suitable for various

floor heights

Hydraulic power steering

Pnuematic

II

Optional

I



10 Braking System

in s an ra e oc ng

√

ii Eleronic controls (optional) √11 Electrical system

11.1 Batteries:

11.2Self Starter

11.3

Alternator

11.4 Electrical wiring & controls -type

12 Speed limiting device(Optional):

Electronic type Duly approved /certified as per AIS – 018/2001 or latest, Temper proof and be adjusted to

applicable speed limit

Multiplexing type

Dual circuit full air brakes, with disc type arrangement

for front and drum at rear brakes. Graduated hand

controlled, spring actuated parking brakes acting on rear

wheels

24 volt DC

Low maintenance type lead acid batteries for 24 V

system- performance as per BIS:14257-1995( latest).

2*12V of commensurate capacity. Maintenance free

batteries preferred.

24V,100 amps (another alternator of similar capacity for

AC buses)

24V,4.5 kw

√

√



13Tyres 7.50*16R14

14 Fuel Tank

Fuel Tank location etc

15 Bus characteristics

15.1 Bus dimensions mm(indicative)

iOverall Length(Over Body excl

bumper)≤ 6000

iiOverall Width(sole bar/Floorlevel-

extreme pts)≤ 2200

iiiOverall Height(unladen)-(At

extreme point )≤ 3300

iv Wheel-base ≥3000

v Front Overhang ≤ 45%

vi Rear Overhang As per CMVR

15.2Turning circle radius (mm)-

Minimum

15.3 Floor Ht above ground(mm) ≤ 800 mm≤400 for ≥ 50% of

bus length

≥ 50% of

bus

15.4 Clearances mm

i Axle Clearance(mm)

ii Wheel Area Clearance(mm)

iiiMin.Ground Clearance(un-

kneeled) at GVW

15.5 Angles (degrees)

iv Angle of Approach (Unladen)

v Angle of Departure(Unladen)

viRamp Over Angle (half of Break-

over angle)

16 Bus body

16.1 Type and category of buses:

16.2 Entry Exit Gates with doors

16.2 Location of gates

≤ 45%

As per CMVR

Steel Radial 10.00 R20 Tube-

less

≤ 5000

As per CMVR

min.190 mm

≤ 9000

> 250mm for parts fixed to bus body &> 200mm for the

parts moving vertically with axle.

Within the wheelbase not less than 270mm.

2600-50

≤ 3800

Capacity of diesel fuel tank/ CNG cylinders adequate to

enable bus opration of upto 300km between consecutive

fillings

Optional

Not less than 9 degrees.


Minimum 4.8o to 5.1o ,as per wheel base.

Type1 Ordinary NDX

Location on near side



16.3 Type of doors

i Operating mechanism

ii pen ng os ng me n sec per

iii Positions of door controls

ivPassenger safety system - allowing

bus motion on doors closing√

16.4 Front Service doors - near side:

a- Door aperture (without

Flaps)mm

b- Clear Door width (fully

opened)mm

c - Door height

d Positioning front service gate

e No. of gates min. 1

16.5Rear Service doors(near side):

where provided√

a- Door aperture (without

Flaps)mmAs per bus code

b- Clear Door width (fully opened

)As per bus code

c - Door height As per bus code

d-Position ing Rear Door wrt C/L

of RrAxle.as per bus code

e No. of gates 1

16.6

ax. s ep e g mm rom

ground - unladen & un-kneeled

a stepped type entry 400

bno step entry/level entry(at stn

platform ht.)800 400 650

16.7 Max height (mm)of other steps

a if door ahead of rear axle

b if door behind rear axle

As per bus code

as per bus code

As per bus code

As per bus code

As per bus code

200 250

As per bus code

Rear edge of gate 1500 mm

ahead of C/L of R/axle

1

√

1

As per bus code

As per bus code

400

4

√

√

Electro pneumatically controlled



16.8 Ramp for wheel chair at the gates

Suitable mechanism to

provide accessibility to

persons with

disabilities(PwD) as per

1995 act

a Dimensions

b Material

c Load carrying capacity

d

Device to prevent the wheel chair

roll off the sides when the length

exceeds 1200mm

as applicable for 16.8

e Device to lock wrapped up ramp

f Kneel Ramp Control: as applicable for 16.8

Requirement for passenger with

limited mobility√

Wheel Chair Anchoring - min. for

one wheel chair √

Priority Seats - min 2 seats √

Stop Request- on every pillar √

Emergency doors/exits or appertur

Dimensions mm

Door closing Requirements for

Bus Movement -

-

construction & control system of a

power operated service door be such

that a pax is unlikely to be

injured/trapped between the door

As per bus code

Door Components As per bus code

Door locks/locking systems/door

retention items to meet requirements

of

As per bus code


Sunken type wrap

over(manually operated) ramp,

for wheel chair of PwDs, fitted

on floor at gate infront of PwD

seat anchorage.

> 300 kgs

Width minimum 900 mm

Aluminum alloy with anti-slip

coating

Bus could start only after door closing completed

√

√

√

Kneeling arrangement for

Kneeling on left side severally

and combined.Kneeling upto

60mm

g

16.10

√

√

√

16.9

As per bus code

As per bus code

As per bus code

As per bus code

As per bus code



Door Hinges As per bus code

17 Bus Body

17.1 Design Type Approval

Design Type Approval -All bus

body structures & structural

aggregates be designed to fulfil

the loading,operating &

performance parameters using

Finite Element Analysis or any

other analytic technique for:

Strength

Stiffness

Structural Stability

VibrationSafety

As per bus code

17.2 Structural performance

17.2.1

a

Body Structure Strength Test-

Each type of vehicle be subjected to

Roll Over Test on complete vehicle/

specified representative section

thereof or to an alternate method

approved by the test agency

As per bus code

b Stability As per bus code

c Deflection √

d Vibrations √

e Crash worthiness √

f Roll over protection √

g

Jo nt Strengt - o y pane o nts

meet rqrmnts of holding the joined

panel when subjected to force of 60% of tensile strength of weakest

oined bod anel.

As per bus code

17.2.2 Various loads:

a

of Pax x wt. of pax (68 Kgs.) +

pax luggage weight (7 Kgs).

(Besides the vehicle related

loads).

√ √

√

As per bus code

Required

As per bus code

As per bus code

As per bus code

√

√

√

i

As per bus code



b

Bump Loads: # Bump height

= As per relevant BIS/Indian

Road Congress Guidelines. #

Case I: Single Wheel on

Bump/Pot hole. # Case II:

Diagonally opposite wheels on

Bump/Pot hole. # Case III:

Both wheels (Front & Rear) on

√

c

Braking Loads:0.6g (applied

together). Horizontal = 0.6g

load, Vertical = 1g load,

√

17.2.3us o y s ruc ure eva ua on y

a Physical testing or

b Finite Element Method

17.2.4 Required performance values /

a Strength (Factor of safety) (tol:-

b Stiffness (Deflection) mm

c Frequency)Hertz

d

Front Impact :

Velocity=56kmph against fixed

rigid barrier)

(HIC= Head Injury Criterion

calculation is based on the

acceleration level at the head

of the driver/ passenger & the

time duration during which themaximum value of above

acceleration is build up.

Typical acceleration at the

head should not exceed 80g

continuously for 3 milli

seconds to avoid head cracks).

Roll over tests with the bus

rolling from ground level

instead of a raised platform.

Angular velocity should notexceed 5 de /sec.

position

under gravity from this

considered

√

As per bus code

√

5mm

5Hz

√ Head Injury Criterion(HIC) = 1000√ Crumbled Zone = 132mm

√No part of structure would intrude into residualspace

i. Unstable position should not occur before 35

deg. ii. No part of structure intrudes into residual

space.

As per bus code

As under

≥3 i.e.design stress≥1/3rdof yield stress

e



f

structure {ER

=Reference energy.-- Potential

energy of the bus in its

(unstable) equilibrium

position). ER = Mxgxh Where

g Buckling Factor

17.3 etc17.3.1 Super structure

17.3.2 Understructure:

17.3.3 Paneling

a Roof paneling : Interior

b Roof paneling : Exterior

c Side Paneling:Interior

d Other side Panels:

e

tretc ane : xter or s e pane s

of stretched steel sheet at

different waist levels along length

f Skirt Panel :

g Front end interior:

h Front end Exterior

i Rear end Interior :

j Rear end Exterior

17.3.4 Insulation

a Roof structure/body

b Engine compartment

17.3.5 Aluminum Extruded sections for:

i Rub rail

ii. Decorative Moulding

iii. Wire cover

iv. Wearing Strip

v. Foot step edging

vi. Panel beeding

vii. Window frame

viii. Roof grab rail brackets

17.3.6 Floor type / Materials etc

Type of Floor as per bus code

Steps on floor

No stpes except those

necessary on near side

gates


necessary for the rear

high floor area

one s ep

in the

low floor

areaeither at

gates or

across

the floor.

No step

Material to be decided by the manufacturer






Aluminum extrusion IS 733/1983 or better






≥ 4




0.75 ER

Flat except at wheel arches in



Maximum floor slope nil nil

6% ( As

per AIS

052)

Low Floor area (% of total floor ar not applicable

a Floor Surface material

12 mm thick boiling

water resistant marine

board BIS 710-

1976/latest & fire

retardent as per BIS

5509-2000(IS 15061-

2002)

b Anti – Skid material

17.3.7 Safety Glasses and fittings:

Front Windscreen (Laminated)

glass:

Size:>1500 width*1000

ht*6mm thick

Rear Windscreen:

Size:>1200mmwidth*600mm

ht*5.3mm thick

Side Windows:

Glass Thickness:

dWindow & other Glasses -

material specs, thickness etc

e Safety Glass

f Rear View Mirrors

17.3.8 Seating and gangway etc

APassenger Seatings for Ordinary

type-1 buses

Seat Layout in the low floor area NA

ea ayou n e g er oor

ea rea sea space

*Seat Pitch - minimum: mm

3mm thick Anti-skid type Silicon Grains ISO 877/76 for

colour,IS5509 for fire retardancy

, ,

curved corners with PVB film IS 2553(Part-2)-

1992/latest .

a , -p ece es gn- op xe o om s ngtoughened glass IS2553(Part-2)-1992/latest .

Single Piece Curved toughened glass-plain/flat at centre

& curved at corners IS:2553(Part-2–1992/latest

Toughned as per IS:2553(Part-2)–1992/latest of 4.8-5.3mm thickness

as per bus code AIS 052/ CMVR

as per bus code AIS 052

b

800-900mm X 2200-2300

mm*5.5+0.3 mm thick

As per DTC specs

4.8-5.3mm

a

As per bus code

400*380

As per bus code

686

c

a

1250-1300mmX 2450-

2500mm* 8mm thick

12 mm thick Boiling water

resistant Marine board BIS:710-1976/latest) & Fire Retardant

asperBIS:5509-2000(IS 15061

:2002 )

2x2,



Min. backrest ht-from floor to top of

seat/ headrest

Seat base ht-distance from floor to

horizontal front upper surface of seat

Seat back rest height mm 350

c Torso Angle: 12 deg

d Seat materials

eea rame s ruc ure ma er a

ree e g over sea ng pos on:

Seat Base Height: As per bus code

gClearance space for seated pax

facing partition mm

Seat back / Pad material /

thickness:(optional)

Type:

Upholstery:

jArea for seated passengers

(Sqmm.) type 1 NDX/SDX:400*380

k Area for standee passengers

(Sqmm.):As per bus code

lo. o sea s nc u ng one or

13-22

m No. of Standees( calculation as per

bus code)

n Sitting / Standing Ratio

o Seats Side facing Location

p Seat Arm

q Seat back rest

r Seat belts & their anchorage

Performance & Strength requirements √

Driver Seat

Passenger Seats

B Gangway:

Min. Interior HeadRoom(C/L of

Gangway)mm

1750mm &1500mm for

non standee type

At Front Axle:

At Rear Axle:

Other areas

ii

Gangway Width (mm) from gates

to longitudinal space between

rows of seats (Access to service

650 ±50

iii

Gangway Width (mm) in

longitudinal space between rows

of seats

650 ±50

As per bus code

400*380

Fixed

Not suggested except on wheel arches and provided with

Not required

√

Pile Fabric/Jekard. 0.7-1mm thickness

As per bus code

i

1900 mm,& 1800mm on rear

side of rear door.

As per bus code

700 mm from entry-exits gates

thr' aisle

Minimum 700 mm

AIS 0243

Min 350

Polyurethene Foam IS15061:2002, 30± 5 mm

MDI Moulded IS 5509

As per bus code

AIS 023

Not required

As per bus code

Frame Structure of ERW Steel Tube

more than 800f

performance

h

b

-

s

375

Minimum 12 degrees

As per AIS 052 / Bus code




iv

Gangway Width (mm) in

longitudinal space between rows

of seats (Rear of rear edge of the

rear door in RE bus)

NA

Slope of the gangway in type I bus

GeneralGagway slope in zone rearward of a

transverse vertical plane situated

1500 mm forward of the centre line

of the rear axle

Driver’s working space

Driver’s seat

17.3.1 Corrosion prevention & painting

Corrosion prevention treatment

Internal surfaces of structural mem

External surfaces of structural me

After drilling holes / welding

n erme a c ga van c corros on

b Primer coating

c Painting:

17.3.11Electricals

a Electrical Cables:

PU Paint panel Etch primer, PU primer surfacer, PU top

coat BIS 13213:1991 or latest/International standard as

applicable for exterior painting incl interior wherever

required.Shades–IS: 5-1978 (or latest)Class-A2

BIS marked, Copper conductors with fire retardant

PVC insulation capable to withstand temperatures upto

70oFire retardant cables per IS:2465-1985 class B.

Conductor x-sec varying as per circuit requirements,min

X-section 0.5 sq mm

As above for Internal surfaces of tubular structural

members corrosion prevention

s a ove or corros on preven on any r ve ng an or

welding operations carried out after treatment , etc,Corrosion free guaranteed life of bus items / structure in

Required

cAs per bus code

AIS:023 & Bus Code

Suitable specification and performance

a

Corrosion prevention treatment / painting for structural

members / components, assembled structure, panels etc,

all materials & joints would withstand a two weeks(336 hours) Salt Spray test in accordance with

ASTM procedure B117 with no structural

detrimental effect to normally visible surfaces & no

weight loss of over 1%. Other details as per bus

code

As above

vAs per bus code

Minimum 700 mm

As per bus code



b Conductor Cross section

Safety requirements of electricals

Fuse

circuits where RMS value of

Location of cables away from heat

sources

as per Standards related to elecric

Cable insulation wrt heat

Battery Cut - off Switch (Isolator switch):

d Wind Screen Wiper:

i Wiper Motor:

ii Wiper Arm/Blade:

e Driver Cabin Fan

f g ng - n erna ex erna an

um na on

Dash Board Tell tale lighting/Control l

Cabin Lighting - Luminous flux of all

lamps for cabin lighting

Passenger area lighting -Luminous

flux of all lamps for pax area lighting

17.3.1 Safety related items:

aDriver Seat Belt & anchorage duly

type appd.

Passengers seat belt:

As per bus code - Fuse of rated current 1.5 times the load

current of electrical eqpt. necessary in every electrical

circuit

As per bus code. Isolation switch required for each such

circuit

As per bus code -Required for each such circuit

As per bus code - Required for all items

as per bus code & bulbs tested for Photometry as per IS

1606:1996

anarom c ype.

1 no.,200mm fan As per provision of CMVR, matchinginteriors

Variable speed with time delay relay asper IS011.20-24

cycles / sec, 24 V*150W min.

as per bus code

Electrically operated with two wiper arms & blades,

wiper motor heavyduty steel body with min.2-Speed

operation Wiping system as per CMVR/ BIS:7827 Part-

1, 2, 3(Sec.1 & 2)/latest. As per AIS 011

As per bus code with illumination level of ≥ 100 lux &≤200 lux

As per bus code with illumination level of ≥ 100 luxand ≤ 150 lux

As per Bus Code.

ELR recoil type,3 point mounting as per CMVR

&BusCode.Conforming to AIS:005&015.

As per Bus Code(AIS 052)

g

As per bus code

As abovee and suitable to carry rated current (Japanese

Auto. Stndrd JASO D0609-75 AV)

c

Heavy-duty type capable of carrying&interrupting totalcircuit load.1 ea near battery/driver



Number:

c

r ver ax w ee c a r ea e

d Fire Extinguisher:

e First Aid Box:

f Handrails Min. length*dia.*

height above floor: mm

g Handholds:

h Stanchions:as for midi buses Tube

dia 30mm

i Bells for pax convenience

j Window Guardrails:

i In all school buses - minimum nos. 2

iiIn all other buses buse- minimum

nos.2

k Other details:

is guar ra a a e g rom

iie s ance e ween wo guar

l Entrance/Exit Guard/Step wellguard:

mmergency x oors, warn ng

nron ear oor,s epwe

oMirrors Right/left side

exterior/interior:

The first seat behind the driver , last two seats facing

gangway,and the side facing seats at the front and rear

wheel arch,the folding seats in wheel chair area,to be

provided with seat belts.Also seats closer to the service

doors and in front of partitions

75

2

Minimum 2 Nos. of aluminium alloy alongwith the

provision of brackets to avoid flexing

2

800mm min. ht. extending ≥ 100mm more than C/Line of

sitting position of the Pax.

75-100

As per Bus Code/ CMVR

Convex As per AIS: 001 & 002.Interior with double

curvature

Incandescent bulb AIS 008

b

Vertically fitted, aluminium

tubing with Colur contrasting

and slip resistant. 40 mm dia &

3.15 mm thick

3 points as per AIS 005 & AIS 015

Dry chemical powder type GSR – 853 (E) dated19.11.2000 (or latest)/As per bus code, 2 kg each, ISI

Marked

1 No., As per provision of CMVR

Colour contrasting and slip resistant of aluminium

tubing.32 mm dia, 3 mm thick.

Colour contrasting and slip resistant. 2 to 4 Nos. hand

holds per bay

High visibility bell pushes shall be fitted at a height of

1.2 meter on all alternate stanchions. These would assist

PwDs

Aluminium black powder coated.Tubular type. As per

AIS 052



p Towing Device Front / rear

q Warning Triangle

r Fog Lighting

Bumpers - front and rear

Impact Strength for Bumpers

17.3.1 Miscellaneous items/requirements

Windows

Type of Window

Minimum Height of window

apperture(clear vision)≥ 700 mm

Min ht of upper edge of window

apperture from bus floor As per bus code

Minimum Width of Windows

(clear vision zone)

b Cabin Luggage Carrier

18 Life cycle requirements of bus 10 yrs and 750,000 kms

Body Structure

Refurbishing of body every NP

b Drive Train NP

c Annual Maintenance Contract(AM Optional

Notes ; NP - Not Provided, NA- Not applicable

Bus Code as AIS 052

Heavy duty 1.2 times (min.) the kerb weight of the bus

with 30o

of the longitudinal axis of the bus. As per

CMVR & IS 9760 - Ring Type

As per AIS 052 / CMVR

Meet requirement of Para 6.3.1 of bus code

sliding type window panes except ACX bus

As per bus code

As per bus code

As per bus code

As discussed above


a

s

a

≥ 1000 mm in type I -NDX &

SDX

Both made of Steel or impact resistant polymer or

combination of both meeting rqrmnt of an energy

absorbing system

NP

NP

Optional

10 yrs and 750,000 kms













Reamrks

Mini Buses

Max floor ht 800 mm

Buses with floor height of

400mm and 650mm are

presently not being

manufactured in Midi and Mini

bus categories. OEMs requested

to increase the max floor ht to

850-950 mm

≥ 0.8 m/s/s

17 percent

√

BSIII/BS IV

Diesel / CNG / ULSD/LPG/Bio-diesel

Fuel compatible engine

Max vehicle speed of upto 75 kmph bus GVW

≥ 0.8 m/s/s

≤ 10 secs

75 kmph

Midi buses

Internal Combustion Engine

17 percent

√

Max Engine torque required at lower range of RPM and

spread over a wider range of RPM

to be specified for various fuels by vehicle

manufacturer

Diesel / CNG / ULSD

BSIII/BS IV

Max floor ht 800 mm

N.A

Suggested specifications after core group meeting on

01/06/12

luxe - NDX) -- Mini and Midi urban buses

eristics



Optional

I

II

III

√

II

III

I

√

Engine oil Pressure, Engine Coolant temperature,

Engine Speed in RPM, Vehicle Speed, Engine % load

Engine should be able to operate efficiently at

ambient temperatures of approximately 0o

to 50oC,

humidity level from 5% to 100%, and altitude

levels of upto 2000 meters , generally operating in

the semi arid zone / hilly region prevailing in thearea.

Optional

Hydraulic power steering

Pnuematic



Transmission system be fitted with a mechanism

which makes it possible to engage reverse gear only

when vehicle is stationary

Dry, Single plate, Power assisted operation

Single reduction, hypoid gears, full floating axle shaftswith optimal gear ratios suitable for urban operations

Heavy duty reverse elliot type Axle suitable for various

floor heights

60mm entry/exit side severally&collectively

Both front and rear

Hydraulic double acting 2 at front & 4 at rear

Electronically controlled air suspension system

OEMs requested to remove air

suspension



√

√

Wattage requirments will be

decided by the manufacturer

Amps requirment will be

decided by the manufacturer

As finally decided by core

group

1)Usability: a)Control all External and Internal

lamps,Fans,Buzzer,Horn 'PIS' and ITS equipment ,

Passenger/driver Compartment illumination,

Ventilation, defroster, motors, valves,Kneeling

automation,CNG Solonoid,Speed Limiter b)Monitor

Safety Critical vehicle Systems such as Braking ,door

locking,Tyre behaviour

2) Architecture a)Multi 'Node',each node with its own

microprocessor(16/32 bit min.) and memory(Flash

min.256kb,RAM min.64kb,EEPROM min.32 kb with

internal communication on CAN 2B. b)Outputs for

resistive loads/coil loads/Relay loads: High Side-At

least 5~10 per node of 20 A and 5A each (PWM,H-

bridge,Frequency controlled).c)Inputs:At least 10

inputs which can be used both as Analog and Digital

.At least one input for frequency/pulse counting.At least

8 inputs which can which can amplify signal upto 16

times. d)Ability to store and retrieve Diagonstic

Logfiles . Primary Source of data input to 'SCU' for

'VHMD' via CAN 2B(J1939).

3)Each Node to be IP 66 Certified"Operating

Conditions and Test Compliances" as per Annx 1

Dual circuit full air brakes, with disc type arrangement

for front and drum at rear brakes. Graduated hand

controlled, spring actuated parking brakes acting on

rear wheels

√

√24 volt DC

Low maintenance type lead acid batteries for 24 V

system- performance as per BIS:14257-1995( latest).

2*12V of commensurate capacity. Maintenance free

batteries preferred.

24V

24V

Electronic type Duly approved /certified as per AIS – 018/2001 or latest, Temper proof and be adjusted to

applicable speed limit



As finilized in the core

committee meeting on 1/6/12

≤ 6000

≤ 2200TML has requested for 2.2-2.4

m width

≤ 3300

≥3000

≤ 45%

As per CMVR

≤ 800 mm

Subject to the decision taken

during the committee meeting

held on 08/06/12

Subject to the decision taken

during the committee meeting

held on 08/06/12



2600-50

Capacity of diesel fuel tank/ CNG cylinders adequate

to enable bus opration of upto 300km between

consecutive fillings

Optional

≤ 9000

As per CMVR

min.190 mm

≤ 800 mm

> 250mm for parts fixed to bus body &> 200mm for

the parts moving vertically with axle.

≤ 3800

≤ 5000

≤ 45%

As per CMVR

Type1 Ordinary NDX

Location on near side

Within the wheelbase not less than 270mm.



Minimum 4.8 deg

As per CMVR



√

1

√

As per bus code

As per bus code

As per bus code

as per bus code

1

400

800As finilized in the core


Electro pneumatically controlled

As per bus code

As per bus code

As per bus code

as per bus code

4

As per bus code

√

√

As per bus code

Rear edge of gate 1500

mm ahead of C/L of

R/axle

1

400

1

√

As per bus code

As per bus code

200 200

800





Suitable mechanism to

provide accessibility to

persons with

disabilities(PwD) as per

1995 act



√

√

√

√

As per bus code

As per bus code

As per bus code

over(manually operated)

ramp, for wheel chair of

PwDs, fitted on floor at

gate infront of PwD seat


Width minimum 900 mm

Aluminum alloy with anti-

slip coating

> 300 kgs

√

√

√

√

√

√

Knee ng arrangement or Kneeling on left side

severally and

combined.Kneeling upto

60mm

As per bus code

As per bus code

As per bus code

As per bus code

Bus could start only after door closing completed

As per bus code



As per bus code

Subject to the decision takenduring the committee meeting

held on 08/06/12

As per bus code

As per bus code

As per bus code

√

√

√

√

As per bus code

√

As per bus code

Required

√

√

√

As per bus code

As per bus code

As per bus code

As per bus code

√

√



√

√

As under

≥3 i.e.design stress≥1/3rdof yield stress5mm

5Hz

√

√

As per bus code As per bus code

√ Head Injury Criterion(HIC) = 1000√ Crumbled Zone = 132mm

√No part of structure would intrude into residualspace

i. Unstable position should not occur before 35

deg. ii. No part of structure intrudes into residual

space.



as per bus code


necessary on near side gates







0.75 ER

≥ 4










necessary on near side

gates



Aluminum extrusion IS 733/1983 or better

Flat except at wheel arches



nilAs finilized in the core


not applicable

12 mm thick boiling water

resistant marine board BIS

710-1976/latest & fire

retardent as per BIS 5509-

2000(IS 15061-2002)

>1500 width*1000 ht*6mm

thick

>1200mmwidth*600mm

ht*5.3mm thick

NA

not applicable

12 mm thick Boiling water

resistant Marine board

BIS:710-1976/latest) &Fire Retardant

asperBIS:5509-2000(IS

15061 :2002 )

nil

800-900mm X 2200-2300

mm*5.5+0.3 mm thick

a , -p ece es gn- op xe o om s ngtoughened glass IS2553(Part-2)-1992/latest .

4.8-5.3mm

Toughned as per IS:2553(Part-2)–1992/latest of 4.8-5.3 mm thickness

3mm thick Anti-skid type Silicon Grains ISO 877/76

for colour,IS5509 for fire retardancy

, ,

curved corners with PVB film IS 2553(Part-2)-

1992/latest .

1250-1300mmX 2450-

2500mm* 8mm thick

Single Piece Curved toughened glass-plain/flat at

centre & curved at corners IS:2553(Part-2–1992/latest

2x2,

400*380

686

as per bus code AIS 052/ CMVR

as per bus code AIS 052

As per bus code

As per bus code



350

12 deg

As per bus code

400*380

As per bus code

13-22

√

1750mm &1500mm for non

standee type

650 ±50

650 ±50


Frame Structure of ERW Steel Tube

more than 800

As per bus code

Min 350


375

Minimum 12 degrees

performance

-

1900 mm,& 1800mm on

rear side of rear door.

As per bus code

Polyurethene Foam IS15061:2002, 30± 5 mm

MDI Moulded IS 5509

Pile Fabric/Jekard. 0.7-1mm thickness

400*380

700 mm from entry-exits

gates thr' aisle

As per bus code

Not required

Not suggested except on wheel arches and provided

Not required

Fixed

Minimum 700 mm

√

AIS 023

AIS 0243

As per bus code

As per bus code



NA


committee meetings

BIS marked, Copper conductors with fire retardant

PVC insulation capable to withstand temperatures upto

70oFire retardant cables per IS:2465-1985 class B.

Conductor x-sec varying as per circuit

requirements,min X-section 0.5 sq mm

As per clause 3.17 of bus body code

Minimum 700 mm

As per bus code

As per bus code

As per bus code

As per clause 3.17 of bus body codeAs finilized in the core

committee meetings

AIS:023 & Bus Code



As abovee and suitable to carry rated current (Japanese

Auto. Stndrd JASO D0609-75 AV)

As per bus code

As per bus code - Fuse of rated current 1.5 times the

load current of electrical eqpt. necessary in every

electrical circuit

Heavy-duty type capable of carrying&interrupting totalcircuit load.1 ea near battery/driver

Electrically operated with two wiper arms & blades,

wiper motor heavyduty steel body with min.2-Speed

operation Wiping system as per CMVR/ BIS:7827 Part-

1, 2, 3(Sec.1 & 2)/latest. As per AIS 011

Variable speed with time delay relay asper IS011.20-24

cycles / sec, 24 V*150W min.anarom c ype.

As per bus code. Isolation switch required for each

such circuit

As per bus code -Required for each such circuit

As per bus code - Required for all items

as per bus code

As per bus code with illumination level of ≥ 100 luxand ≤ 150 lux

ELR recoil type,3 point mounting as per CMVR

&BusCode.Conforming to AIS:005&015.

As per Bus Code(AIS 052)

1 no.,200mm fan As per provision of CMVR,matching interiors

As per Bus Code.

as per bus code & bulbs tested for Photometry as per IS

1606:1996

As per bus code with illumination level of ≥ 100 lux&≤ 200 lux



as for midi buses Tube dia

30mm

2

2

Convex As per AIS: 001 & 002.Interior with double

curvature

Colour contrasting and slip resistant of aluminium

tubing.32 mm dia, 3 mm thick.

Colour contrasting and slip resistant. 2 to 4 Nos. hand

holds per bayVert ca y tte ,

aluminium tubing with

Colur contrasting and slip

resistant. 40 mm dia &

3.15 mm thick

High visibility bell pushes shall be fitted at a height of

1.2 meter on all alternate stanchions. These would assist

PwDs

The first seat behind the driver , last two seats facing

gangway,and the side facing seats at the front and rear

wheel arch,the folding seats in wheel chair area,to be

provided with seat belts.Also seats closer to the service

doors and in front of partitions

3 points as per AIS 005 & AIS 015

Dry chemical powder type GSR – 853 (E) dated19.11.2000 (or latest)/As per bus code, 2 kg each, ISI

Marked

1 No., As per provision of CMVR

Aluminium black powder coated.Tubular type. As per

AIS 052

2

2

Minimum 2 Nos. of aluminium alloy alongwith the

provision of brackets to avoid flexing

75

75-100

800mm min. ht. extending ≥ 100mm more than C/Line

of sitting position of the Pax.

As per Bus Code/ CMVR

Incandescent bulb AIS 008



≥ 700 mm

As per bus code


NP

NP

Optional

Notes ; NP - Not Provided, NA- Not applicable

Bus Code as AIS 052

NP

As per bus code

Heavy duty 1.2 times (min.) the kerb weight of the bus

with 30o

of the longitudinal axis of the bus. As per

CMVR & IS 9760 - Ring Type


Optional


Both made of Steel or impact resistant polymer or

combination of both meeting rqrmnt of an energy

absorbing system

Meet requirement of Para 6.3.1 of bus code

sliding type window panes except ACX bus


As discussed above

NP

As per bus code

As per bus code

≥ 1000 mm in type I -NDX

& SDX



























































Documents

Midi and Mini Bus Specs-Revised -1June12_V2