US 9,809,129 B2
Four motor direct driving system
Sheng-Fu Lai, Taoyuan (TW)
Assigned to THUNDER POWER NEW ENERGY VEHICLE DEVELOPMENT COMPANY LIMITED, Central (HK)
Filed by THUNDER POWER NEW ENERGY VEHICLE DEVELOPMENT COMPANY LIMITED, Central (HK)
Filed on Oct. 27, 2015, as Appl. No. 14/923,432.
Prior Publication US 2017/0113569 A1, Apr. 27, 2017
Int. Cl. G06F 19/00 (2011.01); B60L 15/02 (2006.01); B60L 15/20 (2006.01); H02P 27/06 (2006.01); H02P 5/00 (2016.01)
CPC B60L 15/02 (2013.01) [B60L 15/2036 (2013.01); H02P 5/00 (2013.01); H02P 27/06 (2013.01); B60L 2220/42 (2013.01); B60L 2220/46 (2013.01); B60L 2240/24 (2013.01); B60L 2240/427 (2013.01); B60L 2250/26 (2013.01); B60L 2260/28 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A vehicle driving system comprising:
a steering wheel with a corresponding steering angle;
four electric motors, wherein each of the four electric motors has a voltage input;
a variable input control configured to provide a signal indicating an operational position of the variable input control, wherein the operational position of the variable input control is related to the steering angle;
four wheels, each of the four wheels connected to one of the four electric motors by an axle; and
a vehicle control unit configured to control the voltage inputs of the four electric motors, wherein the vehicle control unit is further configured to:
receive information indicating the operational position of the variable input control;
determine the voltage inputs for the four electric motors based on the received information such that, when the electric vehicle is turning:
a first voltage input is determined for a first electric motor coupled with a front inside turning wheel;
a second voltage input is determined for a second electric motor coupled with a front outside turning wheel;
a third voltage input is determined for a third electric motor coupled with a rear inside turning wheel;
a fourth voltage input is determined for a fourth electric motor coupled with a rear outside turning wheel;
wherein each of the first voltage input, the second voltage input, the third voltage input, and the fourth voltage input are different from each other; and
wherein the first voltage input is less than the second voltage input, the third voltage input is less than the fourth voltage input, the third voltage input is less than the first voltage input, and the fourth voltage input is less than the second voltage input; and
generate instructions to effectuate the voltage inputs to the four electric motors.