Vehicle torque control method and apparatus, electronic device and storage medium

A vehicle torque control method applied to a four-wheel drive vehicle, comprising:

• acquiring an equivalent axle speed of a front axle and an equivalent axle speed of a rear axle of a vehicle, and determining an equivalent axle speed difference between the front axle and the rear axle of the vehicle based on the equivalent axle speed of the front axle and the equivalent axle speed of the rear axle;
• determining a drive shaft torque adjustment value based on the equivalent axle speed difference;
• and
• adjusting an output torque of a motor of a drive shaft based on the drive shaft torque adjustment value,
• wherein the adjusting an output torque of a motor of a drive shaft based on the drive shaft torque adjustment value comprises:
• determining, when an absolute value of the equivalent axle speed difference is greater than a first equivalent axle speed difference threshold, that a torque of the front axle of the vehicle needs to be reduced or a torque of the rear axle of the vehicle needs to be reduced;
• controlling, when the torque of the rear axle of the vehicle needs to be reduced, the torque of the rear axle to be reduced based on the drive shaft torque adjustment value;
• and
• controlling, when the torque of the front axle of the vehicle needs to be reduced, the torque of the front axle to be reduced based on the drive shaft torque adjustment value,
• wherein the determining that a torque of the front axle of the vehicle needs to be reduced or a torque of the rear axle of the vehicle needs to be reduced comprises:
• determining, when the equivalent axle speed difference is greater than 0, that the torque of the rear axle of the vehicle needs to be reduced, or
• determining, when the equivalent axle speed difference is less than 0, that the torque of the front axle of the vehicle needs to be reduced.

An electronic device, comprising a processor, a memory and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the processor being configured to perform:

• acquiring an equivalent axle speed of a front axle and an equivalent axle speed of a rear axle of a vehicle, and determining an equivalent axle speed difference between the front axle and the rear axle of the vehicle based on the equivalent axle speed of the front axle and the equivalent axle speed of the rear axle;
• determining a drive shaft torque adjustment value based on the equivalent axle speed difference;
• and
• adjusting an output torque of a motor of a drive shaft based on the drive shaft torque adjustment value,
• wherein the adjusting an output torque of a motor of a drive shaft based on the drive shaft torque adjustment value comprises:
• determining a front axle torque lower limit value;
• and adjusting, if a current output torque of the motor of the drive shaft is less than or equal to the torque lower limit value after the drive shaft torque adjustment value is reduced, the output torque of the motor of the drive shaft to the torque lower limit value, or
• determining a rear axle torque lower limit value;
• and adjusting, if a current output torque of the motor of the drive shaft is less than or equal to the torque lower limit value after the drive shaft torque adjustment value is reduced, the output torque of the motor of the drive shaft to the torque lower limit value.