Electric vehicle air conditioner compressor control method based on three CAN buses
An air-conditioning compressor and CAN bus technology, applied in the field of control, can solve problems such as endangering driving safety, inability of the air-conditioning compressor to cool, loss of control signals, etc., to achieve the effects of improving reliability, improving user experience, and avoiding signal loss
Pending Publication Date: 2020-06-23
IAT AUTOMOBILE TECH
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Problems solved by technology
[0003] However, in the existing structure, there is only one signal transmission route between the air conditioner controller-the vehicle controller-the compressor controller, which can easily cause the loss of control signals
If the signal is lost, the air conditioner compressor will not be able to cool down, which will endanger driving safety
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0024] like figure 1 Shown, the electric vehicle air-conditioning compressor control method based on the three-way CAN bus of the present invention is to be provided with the first CAN bus in the electric vehicle (i.e. figure 1 CAN1 in), the second CAN bus (ie figure 1 CAN2 in), and the third CAN bus (namely figure 1 CAN3) in, also includes vehicle controller, air conditioner controller, and compressor controller. The vehicle controller is arranged between the first CAN bus and the second CAN bus, and connected to the first CAN bus and the second CAN bus respectively; the compressor controller is connected to the first CAN bus ; The air conditioner controller is connected to the third CAN bus. Between the third CAN bus and the second CAN bus, a first signal conversion mod...
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The invention discloses an electric vehicle air conditioner compressor control method based on three CAN buses. A first CAN bus, a second CAN bus and a third CAN bus are arranged in an electric vehicle; the electric vehicle further comprises a vehicle control unit, an air conditioner controller, an air conditioner compressor controller, a first signal conversion module and a second signal conversion module; the air conditioner controller sends air conditioner compressor starting request information to the vehicle control unit through the first signal conversion module; the air conditioner controller sends air conditioner compressor starting request information to the vehicle control unit through the second signal conversion module; and the vehicle controller carries out joint verificationon the received air conditioner compressor starting request information; and if the joint verification is passed, the air conditioner compressor controller is controlled to start an air conditioner compressor.
Description
technical field [0001] The invention relates to a control method, in particular to a control method for an electric vehicle air-conditioning compressor based on a three-way CAN bus. Background technique [0002] In existing electric vehicles, the control of the air conditioner compressor is to send a start signal from the air conditioner controller, which is sent to the compressor controller after being processed by the vehicle controller, and the compressor controller controls the refrigeration of the air conditioner compressor to Improve the comfort of the user in the car and reduce the driving hazard caused by the fogging of the window. [0003] However, in the existing structure, there is only one signal transmission route between the air conditioner controller-the vehicle controller-the compressor controller, which easily leads to loss of control signals. If the signal is lost, the air conditioner compressor will not be able to cool down, which will endanger driving sa...
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Login to View More IPC IPC(8): B60H1/32B60H1/00B60R16/023
CPCB60H1/3205B60H1/00642B60R16/023
Inventor 孙永宾刘吉顺王晓宇杜燕蒙王守军
Owner IAT AUTOMOBILE TECH