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The difference and characteristics of the drive data bus and the comfort data bus in the CANBUS

2019-09-17 10:39:24 root 777

The difference and characteristics of the drive data bus and the comfort data bus in the CANBUS

First, the characteristics of CANBUS drive data bus

The Threadof the car CANBUS drive data bus is 500Kbit/s, which is used to connect the control units of the CAN drive data bus into a network.

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The CAN drive data bus control unit has:

- engine control unit

-ABS control unit

-ESP control unit

-Transmission control unit

-Airbag control unit

- Combination meter

The CAN drive data bus is connected by the No. 15 binding post (ignition switch), and after a short time of operation, it enters the fully closed state.

Second, the characteristics of CAN comfort / Infotainment data bus

The CAN Comfort/Infotainment data bus has a rate of 100 Kbit/s and is networked with control units for the CAN Comfort Bus and CAN Infotainment bus.

The CAN Comfort/Infotainment Data Bus Control Unit has:

- Fully automatic air conditioning / air conditioning control unit

-Door control unit

- Comfort Control Unit

- radio and navigation display unit control unit

The control unit exchanges data via CAN-HIGH line and CAN-LOW line of CAN drive data bus, such as door switch, interior light switch, vehicle position (GPS) and so on.

Since the same pulse frequency is used, the CAN comfort data bus and the CAN Infotainment bus can use a pair of wires together, of course, the preconditions have corresponding data on the car.

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