About 52 results
https://drivepatents.com/patents/969424 · 1 Oct 2014
A motor control device of controlling a motor unit (6) that drives a wheel (2) is provided. The device include a temperature sensor (Sa) that senses a temperature (Tc) of a motor coil, and a motor current limiter (95). The motor current limiter (95) sets a...
https://drivepatents.com/patents/974926 · 14 May 2014
In an electrically driven vehicle which has a pair of electric motors for generating motive power to operate a driving wheel, and a pair of power drive units provided individually corresponding to these electric motors, the power drive units are to be effe...
https://drivepatents.com/patents/979769 · 15 Jan 2014
In a diagnostic device and a diagnostic method for a motor unit of an electric vehicle, an oil degradation/others detection unit (37) is provided which is configured to detect at least any one detection item of a contamination degree, a degradation degree,...
https://drivepatents.com/patents/979756 · 15 Jan 2014
An electric vehicle includes a slip ratio estimator (42) that estimates a slip ratio (ยป) based on rotational frequencies (N1, N2) of respective driven and drive wheels. The vehicle also includes a disturbance observer (43) that determines an estimate (^Te...
https://drivepatents.com/patents/980301 · 1 Jan 2014
An electric vehicle is proposed which can achieve early detection of abnormal short-circuit of motor coils, thus avoiding various driving problems. The electric vehicle includes a motor unit (6) configured to drive a wheel (2). The motor unit (6) includes ...
https://drivepatents.com/patents/980264 · 1 Jan 2014
An electric vehicle includes a motor unit (6) to drive a wheel (2). The electric vehicle also includes a control system that controls the motor unit (6). The control system includes an inverter (31). The electric vehicle also includes a temperature sensor ...
https://drivepatents.com/patents/982407 · 6 Nov 2013
A traction control system for a vehicle (310) having a number of wheels (312,314,316,318) each independently powered by a motor, comprises sensors for sensing the acceleration of the rotation of each wheel and a control unit to adjust the torque applied to...
https://drivepatents.com/patents/982824 · 30 Oct 2013
A wheel motor is arranged so that the wheel is supported directly on the bearing assembly 223 which connects to the inner part of the stator region 223, the vehicle weight not being transmitted via the rotor 240 to the bearing. The rotor mounts on the whee...
https://drivepatents.com/patents/985204 · 3 Apr 2013
To provide an electrically-operated two-wheeled vehicle which can prevent a height position of a lower surface of a swing unit from becoming excessively low even when two rotary electric machines are arranged in the swing unit, can make the swing unit thin...
https://drivepatents.com/patents/992205 · 27 Mar 2013
A plurality of circumferential fins 22g are formed on an outer peripheral surface of a motor casing 22a, and a plurality of fins 22f are formed on an outer surface of a motor rear cover 22d. Lubricant circulates in a motor-casing oil passage 55 provided in...