Cruise Control Device

7/27/2019 Cruise Control Device

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ALEENA MOHAMMED

S7 C

ROLL NO :3

CRUISE CONTROL DEVICES


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IGENERATION

Maintain constant speed

Does not consider vehicle in front

Homogenous traffic (Highway)

II - GENERATION (SACC)

Maintains safe distance by varying speed (Stop and Go)

Considers the Vehicle in front

Frequently Stopped and congested traffic (City)

III - GENERATION (CACC)

Next generation ACC

Communicates with Virtual and Lead Vehicle


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PRINCIPLE OF ACC


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SENSOR OPTIONS

1. Lidar

2. Radar

3. Vision sensors


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Uses Frequency Modulated Continuous light Wave

(FMCW)

A Low Powered, High Frequency Modulated Laser

Diode was used to generate the Light Signal

LIDAR -Light Detection and Ranging


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FUSION SENSOR

Consist of :

Image processing unit and stereo camera

Headway control unit

Millimeterwave radar


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A prototype of a car with fusion sensor arrangement


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Block diagram of sensing and controlling process


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CONTROLLER

1. Speed control

2. Headway control


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Flow diagram of controlling process


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Motorola ACC

EXAMPLE


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SRAM (1 MB - 10 MB)

FLASH (1 MB)

EEPROM (4 KB -32KB)

Real time clock

UART interfaces

CAN interfaces

64-bit floating point unit

MPC 565


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CO OPERATIVE ADAPTIVE CRUISE

CONTROL [CACC]

1. Next generation of ACC

2. The CACC system allows the vehicles to communicate


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Under CACC


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ADVANTAGES

The driver is relieved from the task of careful

Fuel efficiency of the vehicle increases

Traffic system that avoid accidents can be developed

DISADVANTAGES

Expensive

Encourages the driver to become careless


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CONCLUSION

Non-human part of the vehicle controlling

Functions on the basis of explicitly built-in knowledge

Radar sensors, infrared and camera-based sensing used

Working on sensors with a 360degree view


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ThankYou

Documents

Cruise Control Device