Dual-motor arrangement of battery electric vehicle and torque optimization method based on convex optimization algorithm
A pure electric vehicle, convex optimization algorithm technology, applied in the direction of electric power unit, constraint-based CAD, power unit, etc., can solve the problems of high cost of pure electric vehicles, low efficiency of motor, large calculation burden, etc., and improve energy utilization Efficiency, saving vehicle cost, fast calculation time
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[0054] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0055] Implementation of the present invention can be realized by pure electric passenger car model, as figure 1 As shown, the electric vehicle model is equipped with two driving motors, which are respectively arranged on the front axle and the rear axle. The efficiency graph of the motor is shown in figure 2 , image 3 As shown, due to the different initial sizes, the high efficiency areas of the two motors are also different. The high efficiency area of the motor 1 is in the low torque (400N*m-800N*m) and high speed area, while the high efficiency area of the motor 2 is in the high Torque (600N*m-1000N*m), medium speed range. Since there are two motors to drive, the power of the car can be satisfied. In addition, because the efficiency diagrams of the two motors are different, the optimal control algorithm is used to convert the r...
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