Electric vehicle HVH driving method, vehicle-mounted air conditioner controller and whole vehicle control unit

Abstract

The invention relates to the field of new energy vehicle control, and provides an electric vehicle HVH driving method, a vehicle-mounted air conditioner controller and a whole vehicle controller. Theelectric vehicle HVH driving method comprises the steps of receiving a heating starting instruction, and sending a high-pressure heater starting request to the whole vehicle controller based on the heating starting instruction; receiving an enable permission instruction in response to the high-pressure heater starting request from the whole vehicle controller; triggering to close a high-pressure heater relay based on the enable permission instruction; and detecting the on-off state of the high-pressure heater relay, and sending the closed state information corresponding to the closed state ofthe high-pressure heater relay to the whole vehicle controller. Therefore, the problem of energy waste caused by the fact that the HVH relay does not respond to the enable permission signal to be closed is avoided, and the safety performance of the high-pressure heater in the driving process is further improved.

Description

Technical field [0001] The present invention relates to the technical field of new energy vehicle control, in particular to an electric vehicle HVH driving method, a vehicle-mounted air conditioner controller and a vehicle controller. Background technique [0002] Unlike fuel vehicles, which can heat the cockpit by using the waste heat of internal combustion engines, pure electric vehicles generally heat the cockpit through HVH (High Voltage Heater). [0003] The current HVH control can generally be controlled by the HVH controller. Among them, the HVH controller can monitor the actual working status of the HVH and the actual power consumption of the HVH, and use the power signal uploaded by the HVH to use the power when driving; in addition, there are also some models that are driven based on no HVH controller. HVH, but it is only controlled by HVH single-speed relay, which can only be directly opened and closed based on user operations. [0004] The inventors of the present appli...

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Problems solved by technology

[0006] In view of this, the present invention aims to propose a driving method for a high-voltage heater of an electric vehicle, to at least solve the problem of increasing the production and R&D costs of the HVH controller in the current related art, and the inability to control the heating power distribution well without the HVH controller, and potential waste of power and safety issues

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