Motor vehicles – Power – Electric
Patent
1996-05-20
1998-03-03
Ballato, Josie
Motor vehicles
Power
Electric
180 652, B60L 1112, B60L 1114
Patent
active
057225028
ABSTRACT:
A hybrid vehicle having as a control mode at least a continuous-type parallel series hybrid vehicle (PHV) mode and a series hybrid vehicle (SHV) mode, and a control method thereof. A torque distributing mechanism is provided to distribute the output torque of an internal combustion engine (ICE) to a generator and a motor. A braking mechanism and a clutch are provided in this order between the torque distributing mechanism and the motor. The torque distributing mechanism and the motor are connected by the clutch to keep a power transmission efficiency from the ICE to driving wheels at a high value without depending on the vehicle speed in the continuous-type PHV mode. A battery can be recharged even when the vehicle is not running, by releasing the connection between the torque distributing mechanism and the motor by the clutch. When switching to the SHV mode, the motor side output shaft of the torque distributing mechanism is stopped by the braking mechanism to prevent the ICE from overrunning. An SOC sensor is used to detect the state of charge (SOC), of the battery, and when the SOC is lowered, the control mode is forcedly or automatically switched to the SHV mode. The generated power of the generator is controlled to a very small level to substantiate creeping.
REFERENCES:
patent: 5489001 (1996-02-01), Yang
patent: 5495906 (1996-03-01), Furutani
patent: 5562566 (1996-10-01), Yang
12th International Electric Vehicle Symposium, pp. 189-200, Dec. 5-7, 1994, J. Mayrhofer, et al., "A Hybrid Drive Based on a Structure Variable Arrangement".
Patent Abstracts of Japan, vol. 18, No. 633 (M-1714), Dec. 2, 1994, JP-A-6 245317, Sep. 2, 1994.
Ballato Josie
Toyota Jidosha & Kabushiki Kaisha
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