Control method of regenerative braking system of double-shaft double-motor four-wheel drive pure electric vehicle
A technology of regenerative braking and four-wheel drive, which is applied in electric braking systems, electric vehicles, control drives, etc., can solve the problems of low energy recovery efficiency, improve energy recovery efficiency, ensure braking safety, and ensure safety sexual effect
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[0030] Such as figure 1 As shown, the vehicle controller can perform regenerative braking control on the vehicle by controlling the front axle motor and the rear axle motor, and the vehicle controller acts on the brake through the pressure control unit to mechanically brake the vehicle. This is the prior art.
[0031] Such as figure 2 As shown, the control method of the dual-axis dual-motor four-wheel drive pure electric vehicle regenerative braking system of the present invention is:
[0032] 1. Conditions for starting regenerative braking
[0033] When the driver steps on the brake pedal, the vehicle controller calculates the braking strength Z required by the current vehicle and the total required braking force F according to the signal sent by the pressure control unit. xb , the vehicle controller obtains the current motor speed V m and battery state of charge SOC, and calculate the maximum motor braking force F that the motor can provide at the current vehicle speed ...
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