30results about How to "Wide torque range" patented technology

A continuously variable transmission is provided, solving the technical problems in which a balancing force between a torque-changing bucket wheel and a fluid of a hydraulic two-speed synchronizer is limited, discharging all of the fluid to increase torque results in the loss of flexible transmission, and the structures of control and braking apparatuses are complex. The continuously variable transmission comprises an input end planetary gear set (101) and an output end planetary gear set (102). A cavity planetary gear carrier (104) is disposed between the input end planetary gear set (101) and the output end planetary gear set (102). The cavity planetary gear carrier (104) comprises a cavity input end cover (6) and a cavity output end cover (13). A bucket wheel cavity housing (14) is fixedly disposed between the cavity input end cover (6) and the cavity output end cover (13). An inner side of the input end planetary gear set (101) is connected to the cavity input end cover (6). An inner side of the output end planetary gear set (102) is connected to the cavity output end cover (13). One side inside the bucket wheel cavity housing (14) is provided with a bucket wheel planetary gear set (103). The continuously variable transmission of the invention is widely applicable in the field of transmissions.

The invention discloses reluctance motor winding reconfiguration-based vehicle-mounted alternating current-direct current charging and driving circuit topology. The circuit topology comprises a powersupply module, a DC / DC voltage boost-buck module and a reluctance motor reconfiguration module which are connected mutually. Through the reconfiguration reluctance motor, the circuit can work in a charging mode or a charging mode, and the manufacturing cost and the internal space of an electric vehicle can be effectively lowered and reduced; in addition, by reducing the number of switching tubes,the circuit reliability is improved; on the aspect of driving, the circuit topology can obtain high-speed and stable starting torque and wider torque range, and electric energy can be fed back in automobile deceleration or downhill, so that battery duration can be prolonged; on the aspect of charging, the circuit topology can lower limitation on the types of external charging piles, and the voltage can be lowered when the charging voltage is too high, so that charging safety can be ensured; and power factor regulation in the alternating current charging mode can be realized, so that the charging efficiency can be improved.

The invention discloses a steering back-to-center and intermediate position control system and a control method thereof, which judges whether the vehicle is in the steering back-to-center or middle position control working condition through a steering integrated controller's back-to-center judging module; the time-varying sliding mode control module Make the estimated value of the sideslip angle of the center of mass approach to the expected side slip angle of the center of mass, so as to calculate the centering compensation torque in the centering condition; the steering integrated control module according to the steering wheel angle θ 2 After comparing with the threshold value Thres1, choose to use EPS to return to alignment or to use differential power assist to return to alignment. If it is in the middle position control condition of the steering wheel, according to the steering angle θ at the middle position of the steering wheel 3 After comparing with the threshold value Thres2, choose to use EPS or differential power steering to return to the center. The present invention can improve the stability and accuracy of the differential power steering of the distributed drive vehicle and the control in the middle position of the steering wheel. precision.