Advantages of using CAN bus technology in automobilesChengdu Panfeng Technology

Advantages of using bus technology in automobiles Chengdu Panfeng Technology
Information Sharing
Using bus technology can realize information sharing between various parties and reduce unnecessary wiring harnesses and sensors. For example, other electrical appliances of an EFI engine with a bus interface can share the speed, water temperature, oil pressure, oil temperature, instantaneous flow rate of oil volume, etc. provided by it. In this way, on the one hand, additional water temperature, oil pressure, and oil temperature sensors can be saved. Displaying these data on the instrument allows the driver to check the engine operating conditions and facilitate engine maintenance. The table shows the types of data generated and sent by some electronic control units in the car and the sharing of this information by other units.
Table, data transmission and reception status of some electronic control units of automobiles
Reduce wiring harness
The emergence of new electronic communication products has put forward higher requirements for the integrated wiring and information sharing and interaction of automobiles. Traditional Most electrical systems use a single point-to-point communication method with little contact with each other, which inevitably results in a huge wiring system. According to statistics, the wire length in a high-end car using traditional wiring methods can reach up to meters and up to 3 electrical nodes, and this number is doubling approximately every ten years. This traditional wiring method cannot adapt to the development of automobiles. The bus can effectively reduce the wiring harness and save space. For example, the traditional wiring of a certain car door-rearview mirror, window regulator, door lock control, etc. requires only one application bus.
Correlated control
Under certain accidents, it is necessary to perform correlated control on each vehicle, which is difficult to accomplish with traditional car control methods. Bus technology can realize multiple real-time related controls. In the event of a collision, multiple airbags on the car can work in coordination. They sense the collision signal through the sensor and transmit the sensor signal to a central processor through the bus to control the activation and ejection of each airbag.
Fast function expansion
When the electronic control system is upgraded or a new electronic control unit needs to be added, the addition of new functions can be quickly implemented and reliability can be obtained quickly due to the use of a bus for information sharing. verification.