Tokyo R & D Co., Ltd.

Tokyo R & D Ltd.

Nobuhito Ohnuma

Hiroshi Ishii

Takashi Aoki

Osamu Watanabe

Masao Ono

Hikokazu Okaguchi

Akifumi Kurita

Jun Morimoto

Masaaki Yoshikawa

Hiroko Yoshikawa

An object is to provide a charging system in which a battery can be charged in a fully charged state or close to the fully charged state while preventing performance deterioration of a battery due to heat generated during charge. A charging systemfor a battery-set of the invention includes a temperature detecting device, a charging deviceand a control devicefor controlling the charging devicebased on a battery temperature. The control devicecarries out a temperature feedback charge with 'a quantity function of a temperature' (&#x394;T/&#x394;t) as a target value (Y). With the system, it is possible to charge the battery in the fully charged state or close to the fully charged state while preventing the performance deterioration of the battery due to the heat generated during the charge.

Charging system for battery-set

An electric vehicle ( ) including a rechargeable secondary battery ( ), an electric motor ( ) for driving a running section such as wheels and the like and a controller ( ) for conducting control to drive the electric motor by electric power from the secondary battery ( ) is provided with a nonvolatile memory ( ) for storing a password, a display and operation unit ( ) for inputting a password, means (the controller ( ) may also serve) for bringing the vehicle into a state capable of being driven only when the password inputted through the display and operation unit ( ) matches the password stored in the memory ( ).

Electric vehicle

An electric device comprises a plurality of detachable battery units ( ), each consisting of a set of storage battery packs ( B, B, B) and memories ( ) storing information about the charge and discharge states of the battery packs. Connectors are provided to connect and disconnect an electric device ( ) electrically incident to each battery unit being attached or detached. The device includes a driver ( ) for driving a load, a charger ( ) for charging the storage battery packs ( B, B, B) by referring to the information stored in the memories ( ) of the respective mounted battery units ( ), and a controller ( ) for controlling the electric power supplied from the individual battery units ( ) to the driver ( ) by referring to the above-mentioned information.

Electric device and method for charging and discharging battery unit of the same

A hybrid vehicle (,) including an internal combustion engine and electric motors and selectively uses them as a running drive source according to a running state. When one of wheels (,) driven by an engine (,) skids to rotate excessively, a motor (,) connected to that wheel is caused to make a regenerative operation to remedy the skid of the wheel, and running traction made insufficient due to the skid is compensated by driving another wheel (,) by a motor (,) of another wheel by using electric energy recovered by the regenerative operation.

Hybrid vehicle and method of controlling the travel of the vehicle

A kinetic energy regenerating device for an electric motor bicycle by using an electric motor for rear wheel driving and is utilized as a dynamo. An objective of the present invention is achieved by a kinetic energy regenerating device by using an electric motor for an electric motor bicycle, a driving force of the electric motor rotates a rear wheel hub placed on a same axle of a rear axle sprocket through a chain and the rear axle sprocket engaging the chain, the kinetic energy regenerating device comprising: a first driving force transmission element rotates together with the rear wheel hub, and a second driving force transmission element driven by the first driving force transmission element, and an idler sprocket engaging with the chain and driven by rotation of the second driving force transmission element; and at a time of regenerating kinetic energy, rotation of the rear wheel hub makes the chain drive cyclically through the first driving force transmission element, the second driving force transmission element and the idler sprocket, the electric motor incorporated with the chain regenerates the kinetic energy.

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Atsugi, Japan

Nobuhito Ohnuma