Energy recovery control method and device for electric vehicle HVH

An electric vehicle and energy recovery technology, which is applied to vehicle parts, transportation and packaging, heating/cooling equipment, etc., can solve the problems of battery overcharge and analysis, increased production and R&D costs, and inability to control energy recovery and power distribution well. , to achieve the effect of reducing potential safety hazards

Pending Publication Date: 2020-08-04
GREAT WALL MOTOR CO LTD
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  • Claims
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Problems solved by technology

[0006] In view of this, the present invention aims to propose a method for controlling energy recovery of electric vehicle HVH, to at least solve the problem that the HVH controller increases production and research and development costs in the current related art, and cannot perform well under energy recovery conditions without an HVH controller. Accurately control the power distribution of energy recovery, which may lead to the problem of overcharging and decomposing lithium in the battery

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  • Energy recovery control method and device for electric vehicle HVH
  • Energy recovery control method and device for electric vehicle HVH
  • Energy recovery control method and device for electric vehicle HVH

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Embodiment Construction

[0046] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0047] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0048] Such as figure 1 As shown, the energy recovery control method of the electric vehicle high-pressure heater applied to the vehicle-mounted air-conditioning controller according to an embodiment of the present invention includes:

[0049] S11. Receive a heating start command, and send a high-voltage heater start request to the vehicle controller based on the user's heating start command.

[0050] The execution subject of the method in the embodiment of the present invention may be a vehicle-mounted air-conditioning controller. Specifically, the vehicle-mounted air-conditioning controller can control the heating and cooling of the vehicle, for example, by controlling the high-...

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Abstract

The invention relates to the field of electric vehicle control, and provides an energy recovery control method and device for the electric vehicle HVH. The method comprises the steps: receiving a heating start instruction, and transmitting a high-pressure heater start request to a vehicle control unit based on the heating start instruction; receiving an enable permission instruction in response tothe high-pressure heater starting request from the vehicle control unit; triggering closing of a high-pressure heater relay based on the enable permission instruction; and detecting the on-off stateof the high-pressure heater relay, and sending closed state information corresponding to the closed state of the high-pressure heater relay to the vehicle control unit to enable the vehicle control unit to distribute power generated by energy recovery to the high-pressure heater based on the closed state information when the electric vehicle is in an energy recovery working condition. Therefore, energy recovery power distribution is well controlled without an HVH controller, and the potential safety hazard of overcharge lithium precipitation of the battery during energy recovery heating is reduced.

Description

technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to a method and device for controlling energy recovery of an electric vehicle HVH. Background technique [0002] Unlike fuel vehicles, which can use the waste heat of the internal combustion engine to heat the cockpit, pure electric vehicles generally use HVH (High Voltage Heater, high-voltage electric heater) to heat the cockpit. In order to increase the energy utilization rate and the performance of electric vehicles, some electric vehicles are also equipped with energy recovery functions, and can distribute the power generated by energy recovery to vehicle energy-consuming components, such as HVH, so as to realize the recovery of energy for Car air conditioning heating. [0003] At present, the control for HVH 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/22
CPCB60H1/00392B60H1/2218
Inventor 刘喜明吴广李勇张君伟陈柄霖
Owner GREAT WALL MOTOR CO LTD
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