A control method and electronic device for a vacuum pump of an electric vehicle

Abstract

The invention discloses an electric automobile vacuum pump control method and electronic equipment. The method comprises the following steps of detecting the operation time of a vacuum pump within a preset vacuum degree judgment range, determining a mode to be executed according to the operation time; and switching the current execution mode of the vacuum pump to the mode to be executed, and adjusting a threshold parameter of the vacuum degree of opening and closing of the vacuum pump according to the current execution mode. According to the electric automobile vacuum pump control method and electronic equipment, the working time of the vacuum pump in real time can be monitored, the using of a barometric pressure sensor does not need, and the working conditions of a plain and a plateau canbe adapted through only using a relative air pressure vacuum degree sensor. At the same time, since the judgment reference is the working time of the vacuum pump in a specific vacuum degree range, the electric automobile vacuum pump control method and electronic equipment does not need a travel sensor, and the vacuum degree range judgment method can significantly save the judgment time. Thus, theworking time of the vacuum pump is reduced and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field related to electric vehicles, in particular to a method for controlling a vacuum pump of an electric vehicle and electronic equipment. Background technique [0002] Pure electric vehicles generally need to install a vacuum pump. Since the atmospheric pressure on the plateau is very different from the atmospheric pressure on the plain, if the electric vehicle with a vacuum pump enters the plateau area, the working threshold of the vacuum degree of the vacuum pump needs to be modified to adapt to the atmospheric pressure on the plateau. If the existing electric vehicle enters the plateau, it is necessary to use an atmospheric pressure sensor to monitor the change of ambient air pressure, transmit the atmospheric pressure signal to the controller, and adjust the working threshold of the vacuum degree of the vacuum pump. However, the use of an atmospheric pressure sensor will increase the cost of the vehicle. At...

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Problems solved by technology

[0003] Based on this, it is necessary to provide a vacuum pump control method and electronic equipment for an electric vehicle in view of the technical problems that the existing electric vehicle needs to use an atmospheric pressure sensor and a stroke sensor to control the vacuum pump, resulting in increased cost and long judgment time and shortened service life of the vacuum pump.

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