A Vector Control Electric Limited Slip Differential
A limited-slip differential and vector control technology, which is applied in the field of electric limited-slip differential control and motor control, to achieve the effects of stable output mechanical characteristics, superior operating performance, and broad application prospects
Active Publication Date: 2017-07-14
浙江硕仕电气科技有限公司
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[0017] The present invention will be further described below in conjunction with accompanying drawing.
[0018] see figure 1 and figure 2 , the electric limited-slip differential of a kind of vector control of the present invention, comprises asynchronous motor one 1, asynchronous motor two 2, asynchronous motor one 1 and asynchronous motor 2 two are the same, and the stator windings of asynchronous motor one 1 and asynchronous motor 2 two connected in series. The general full name of asynchronous motor 1 is three-phase AC asynchronous variable frequency motor 1, and the general full name of asynchronous motor 2 2 is three-phase AC asynchronous variable frequency motor 2.
[0019] The present invention also includes vector frequency converter 3, voltage detection one 4 and voltage detection two 5, voltage detection one 4 is connected with asynchronous motor one 1, voltage detection two 5 is connected with asynchronous motor two 2, voltage detection one 4 and voltage detecti...
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The present invention is an electrical limited-slip differential with vector control, comprising an asynchronous motor 1 and asynchronous motor 2, the asynchronous motor 1 is the same as the asynchronous motor 2, and the stator windings of the asynchronous motor 1 and the asynchronous motor 2 are connected in series , wherein the electrical limited-slip differential also includes a vector frequency converter, a voltage detection one and a voltage detection two, the voltage detection one is connected to the asynchronous motor one, the voltage detection two is connected to the asynchronous motor two, and the vector frequency converter The actual parameter values after the asynchronous motor 1 and the asynchronous motor 2 are connected in series are calculated, combined into a virtual asynchronous motor parameter value, and stored in the storage medium of the vector frequency converter. The invention realizes the purpose of automatic tuning and vector control of two motors by a vector frequency converter at the same time, realizes electrical limited-slip differential control, can simultaneously complete automatic tuning of two series-connected asynchronous motors, and can complete vector control The control function of the electric limited slip differential.
Description
technical field [0001] The invention relates to the technical field of motor control, in particular to the technical field of electric limited-slip differential control with vector control. Background technique [0002] There is a mechanical differential between the axles of the double drive axle of the car and the wheel of the drive axle to balance the torque distribution of each wheel. When encountering complex road conditions and the adhesion of one end of the wheel is reduced, the wheel will slip and the vehicle will slip. Once a certain wheel slips, the other wheels will not get the torque provided by the car engine, causing the vehicle to be trapped. The mechanical limited slip differential lock can solve this problem. When one wheel slips, the output of the opposite wheel The torque increases according to the increased slip of the wheels on both sides. However, the electric vehicle wheel motor drive system cannot use a mechanical limited slip differential. However, ...
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IPC IPC(8): H02P21/00
Inventor宁翠连
Owner浙江硕仕电气科技有限公司