Blast pump control method for pure electric automobile

Abstract

The invention discloses a blast pump control method for a pure electric automobile. The method includes the following steps of making an unloading signal of a brake system drier have access to a whole automobile CAN network, starting the work of a blast pump through a whole automobile controller according to the before-braking gas pressure and after-braking gas pressure of a gas storage tank, and stopping the work of the blast pump after the unloading signal of the drier is received. On the basis of the information interaction of a brake system and the whole automobile controller, the blast pump is intelligently controlled to be opened and closed according to the actual situation of the whole automobile and the actual pressure of the gas storage tank, the requirement for the safety of the brake system is met, and the energy consumption is lowered.

Description

technical field [0001] The invention belongs to the field of pure electric vehicle air pump control, in particular to a pure electric vehicle air pump control method that dynamically adapts to the actual state of the vehicle, meets the safety requirements of a braking system, and reduces energy consumption. Background technique [0002] In the new energy vehicle system, in order to further save energy for pure electric vehicles, it is necessary to start and stop the air pump. Usually the air pump is intelligently controlled. The existing control method is: read the air pressure of the air storage tank of the vehicle brake system through the vehicle controller, set the initial pressure value, and start the air pump to inflate; when the air pressure reaches the set Turn off the pressure value and turn off the air pump. But there are the following problems in this cheering method: [0003] 1. Repeatedly collect the air pressure of the brake system air tank, resulting in waste...

AI Technical Summary

Problems solved by technology

[0003]1. Repeatedly collect the air pressure of the brake system air reservoir, resulting in waste of resources;

[0004]2. The measurement accuracy of the pressure sensor is not high, which will cause large differences in system control;

[0005]3. The set pressure value Pset1 of the closed air pressure does not meet the requirements of the braking system

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