Automatic transmission driving system for electric vehicle motor
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United States of America Patent
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Jan 8, 2013
Grant Date -
May 5, 2011
app pub date -
Feb 2, 2010
filing date -
Apr 27, 2009
priority date (Note) -
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Abstract
The present invention relates to an electric vehicle motor automatic transmission driving system. The motor automatic transmission driving system includes a motor, a gear transmission, one or more battery groups and a control system. The control system includes a motor controller, a system controller, a battery voltage sensor, a battery current sensor, a first rotation speed encoder, a second rotation speed encoder, a fork position sensor group, a transmission oil (fluid) temperature sensor and a pressure source sensor. The power input of the motor controller is connected with the outputs of one or more battery groups respectively via a first power leads, the power output of the motor controller is connected with the power input of the motor via a second power lead. According to the invention, the motor shaft also act as the first shaft of the gear transmission and the said motor is an AC induction motor or an AC permanent magnet motor.
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