Aisin Seiki Kabushiki Kaisha

Aisin Seiki Company, Ltd.

Aisin Aw Co., Ltd.

Kabushikikaisha Equos Research

Minoru Toyoda

Shuzo Moroto

Mutsumi Kawamoto

Masao Kawai

Toshihiro Shiimado

Koji Hori

Hideki Aruga

Mitsugi Yamashita

Yoshihisa Ito

Yoshihiro Kyotani

A driving force controller for an electric motor vehicle which suppresses changes in behavior of a vehicle when a right or left driving wheel experiences trouble and detects vehicle conditions to independently control the driving force of each wheel so as not to deviate from a predetermined range. The driving force controller computes a driving force for each wheel in accordance to a demand value for driving force and a detected vehicle traveling condition to drive each wheel independently by electric motors. Motor drivers control the motors so that each motor generates power corresponding to the value of driving force computed therefor. A driving demand detector detects the value of driving force demanded for the vehicle and a vehicle condition detector detects a traveling condition of the vehicle. Wheel driving condition detectors detect conditions at the wheels. A computer computes the values of driving force to be provided at each wheel in accordance with the value of driving force demanded and the detected vehicle traveling conditions and corrects the values computed for individual wheel driving forces when a vehicle traveling condition or a wheel driving condition exceeds a predetermined range.

Driving force controller for electric motor vehicle

A vehicle has a rotary magnetic field member which is rotatably supported at a position near the surface of a roadway along which the vehicle runs and rotatingly driven by a driving device. The rotary magnetic field member has magnetic poles of different polarities alternately arranged around its circumference. The vehicle also has an electrical power collector for receiving electrical power from an electrical power supply associated with the roadway. The received electrical power is supplied under the control of a controller to the driving device thereby rotatably driving the rotary magnetic field member. The rotary magnetic field member when rotated relative to the roadway made of an electrically conductive non-magnetic material, forms a varying magnetic field in cooperation with the roadway, thereby generating propulsion force for propelling the vehicle and force for suspending the vehicle, so that the vehicle is propelled in a floating state. It is therefore possible to reduce friction between wheels of the vehicle and the roadway and, hence, to suppress wear of the wheels. In a high-speed transportation system of the invention, the electrical power collector picks up electrical power from the electrical power supply and the rotary magnetic field member is rotatingly driven by the power picked up by the electrical power collector.

Vehicle and high-speed transport system having rotating alternating

A drive unit for an electric motor vehicle includes first and second electric motors having characteristics which achieve high efficiencies in different operational regions. A common motor shaft receives output torques from both of the first and second motors, which output torque are then transmitted to a drive wheel. Sensors are provided for sensing a travelling condition of the vehicle and the rotational speeds of the first and second motors. Request torque, i.e. that torque required for the travel of the vehicle, is determined in accordance with the detected travelling condition of the vehicle. The determined request torque is distributed to the first and second motors in accordance with the detected rotational speeds to govern the output torques of the first and second motors.

Drive unit for electric motor vehicle

A key holder which includes a body and a key pivotably mounted on the body and movable between an operating position in which the key is disposed outside of the body and a non-operating position in which the key is housed within the body. The key holder may also include a biasing member for maintaining the key at the operating position thereof or the non-operating position thereof and the key may include a stopper member disposed thereon which is engageable with the body to maintain the key at the non-operating position thereof.

Key holder

Growing community of inventors

Nagoya, Japan

Minoru Toyoda