Non-hub motor balance switching drive for electric car

Abstract

The invention discloses balanced exchange drive of non-hub motors of a high-energy-saving electric vehicle. The balanced exchange drive adopts four non-hub motors for driving simultaneously, wherein four non-hub motor controllers and one pedal hall accelerator control the four non-hub motors to regulate the speed of the four non-hub motors, so that the four non-hub motors work synchronously. The force received by the four non-hub motors is different at the same time when the electric vehicle turns, and electronic differential and self-adaptive control of two non-hub motors are realized by the four non-hub motor controllers, so that driving is safer. The balanced exchange drive has the advantages that (1) four non-hub motors are adopted as drive, so that the heat dissipation area of each non-hub motor is increased, the effective power of the electric vehicle is improved, tire burst caused by overheat is prevented, the anti-skid ability is improved, and the stability of the electric vehicle and the driving safety are improved; (2) the front or rear two non-hub motors respectively do not work because of some reasons, and the other two non-hub motors work, so that the electric vehicle can travel normally, and the normal driving reliability of the electric vehicle is improved; (3) the non-hub motors are special motors, and the motors, the power systems of which are integrated into hubs, and are named non-hub motors, so that the maintenance and the replacement are facilitated, and the tires are easily replaced; (4) the ABX electronic brake is achieved, mechanical brake is eliminated, and labor and materials are saved.

Description

[0001] 1. Working principle [0002] (1) Balanced drive: When accelerating, the triode in the pedal Hall accelerator is affected by the magnetic field, and sends out DC signals to the four hubless motor controllers, and the four hubless motor controllers receive the DC signals at the same time. The four hubless motors are respectively controlled to work synchronously. [0003] (2) The specific working principle of the balance drive: when accelerating, the pedal Hall accelerator sends out a DC signal, and after the four controllers receive the DC signal, the four controllers simultaneously use the field-oriented technology (FOC) vector control Drive mode, FOC technology decomposes the stator DC current of the hubless motor into torque components and excitation components through coordinate transformation, thereby greatly improving the dynamic index and control accuracy of the controller system, and is used to balance the current four hubless motors Drives are called balanced dri...

AI Technical Summary

Problems solved by technology

However, the high-power mid-mounted motor has small torque, high power consumption, and gear transmission also increases power consumption and makes noise

The hubless motor has large torque and low energy consumption, but the maximum power of the hubless motor is limited, which cannot reach the power required by electric cars

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