Electric vehicles (EVs) are driven by motor, which is an excellent actuator for motion control compared to combustion engines or hydraulic braking systems. One essential advantage of motor is its fast and precise torque response. Thus, for EV's, fast feedback control can be applied in EVs. In this paper such fast feedback control with motor is applied for anti skid control. Some experimental results show the anti skid effect of motor feedback controller, which attempts to increase the equivalent wheel inertia. Then the influence of actuator's response delay is evaluated, resulting that such feedback control is difficult with slow actuator like hydraulic breaking system. These discussions indicate the advantages of motor, however, the actual braking system in most EVs and hybrid EVs (HEVs) are not pure electric ones at this moment. Therefore, regenerative braking control cooperating with hydraulic braking is also proposed and discussed. It reduces the braking distance by 20% in the simulations.
| Filename: | EPE Journal - 11-4 - 4 - Paper Sakai |
| Filesize: | 961.1 KB |
