Abstract: A power supply comprising switching elements (20), wherein the power supply is provided with first heat sinks (30) having electrical conductivity to which the switching elements are fitted and a second heat sink (40) mounted with the first heat sinks which are electrically insulated, and first heat sink is used as one terminal for the switching elements, and the first heat sinks each having a projection, to be in contact with outside terminals (81), (82).

Abstract: A running motor (100) used for vehicles is provided with a stator (200), a rotor (300) and a housing (400) for holding them, wherein the rotor has a support member (330) for preventing rotor magnets (320) from separating from a laminated steel sheet (310), the laminated steel sheet has a plurality of first steel sheets (311) each formed slots (311a) through which the rotor magnets are inserted respectively and a second steel sheet (312) to which the insertion ends of the rotor magnets are pressed, and the plurality of first steel sheets and the second steel sheet are configured to have mutually the same contour. The housing includes a control (500) for supplying a coil (210) of the motor with power and a sensor (600) for detecting a position of the rotor. Further, the housing includes a first housing member (410) for covering the stator and the rotor, a second housing member (420) for dividing the interior of the housing, and a third housing member (430) for covering the control.

Abstract: An electric vehicle (1) including a rechargeable secondary battery (30), an electric motor (9) for driving a running section such as wheels and the like and a controller (5) for conducting control to drive the electric motor by electric power from the secondary battery (30) is provided with a nonvolatile memory (6) for storing a password, a display and operation unit (7) for inputting a password, means (the controller (5) 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 (7) matches the password stored in the memory (6).

Abstract: An electric device (1) in which a driver (4) drives an electric motor (5) by use of electric power supplied from a power supply (2) having a rechargeable secondary battery, and a controller (3) monitors, manages, and controls the driver and the whole device, is provided with a portable device power supply (7) to which a portable device (10) is connectable and which supplies electric power supplied from the power supply (2) to the connected portable device (10) and a portable device interface means (16) for communicating information with the connected portable device (10).

Abstract: An electric device comprises a plurality of detachable battery units (2, 3, 4), each consisting of a set of storage battery packs (2B, 3B, 4B) and memories (11, 12, 13) storing information about the charge and discharge states of the battery packs. Connectors are provided to connect and disconnect an electric device (1) electrically incident to each battery unit being attached or detached. The device includes a driver (9) for driving a load, a charger (5) for charging the storage battery packs (2B, 3B, 4B) by referring to the information stored in the memories (11, 12, 13) of the respective mounted battery units (2, 3, 4), and a controller (6) for controlling the electric power supplied from the individual battery units (2, 3, 4) to the driver (9) by referring to the above-mentioned information.

Abstract: In an electric circuit using a plurality of power semiconductor devices 1, the power semiconductor devices have heat radiation metallic parts 5 to which the electrodes in the power semiconductor devices are electrically connected within a package of the semiconductors. Among the plurality of power semiconductor devices, the heat radiation metallic parts of those having electrodes of the same potential connected to the heat radiation metallic parts are conductively fixed to a single radiator 6 having conductivity. Thus, the radiators are used as a single connection terminal. Besides, the plurality of radiators are conductively fixed to a single heat radiating plate 7 having conductivity, and the heat radiating plate is used as a single connection terminal, or the radiator is electrically insulated and fixed to another radiator 11.

Abstract: The present invention is a motor which has a motor casing (5) and a reduction gearing casing (7) integrally formed, a hole (8) formed on a portion shared by these casings, through which an output shaft (3a) of a rotor (3) extends from the motor casing side to the reduction gearing casing side, and a lubrication oil (9) filling the reduction gearing casing. And, a method for producing a motor comprises the step of charging a resin (11) into and curing it in the motor casing to adhere the resin to a coil of an armature and the inner surface of the motor casing. Besides, the motor casing (5) has a first casing member (510), a second casing member (520) and a third casing member (530) for covering a control section (4), and the first casing member is assembled with the second casing member, and the first casing member is assembled with the third casing member.

Abstract: An electric motor cycle 1 carrying batteries (12) wherein the batteries (12) and a charger (13) are integrated into one body, and the integrated body of batteries and charger is removably mounted on a vehicle body (2). The batteries (12) and the charger (13) are further integrated with a remaining capacity meter (14) into one body, and the integrated body of batteries, charger and remaining capacity meter is removably mounted on the vehicle body. And, a battery-monitoring CPU for protecting the batteries (12) serves to control the charger. A signal line from the remaining capacity meter (14) and a signal line provided on the vehicle body are connected via a connector, and a display of the remaining capacity meter is provided near a speed meter display.

Abstract: A battery cooling structure for cooling modules (battery elements) M by means of open air, which are accommodated within a case 1, has the following arrangement: First, a space within the case 1 is partitioned, and a first space 8b and a second space 8a adjacent to each other and interposing the modules M therebetween are formed. And, on a surface of the case 1, which corresponds to one end side of the modules M, a first introduction opening 9b is formed, and on a surface of the case 1, which corresponds to the other end side of the modules M, a first discharge opening 10b is formed for discharging open air introduced into the first space 8b from this first introduction opening 9b after this open air has passed the inside of the first space 8b. On the other hand, on the surface of the case 1, which corresponds to the other end side of the modules M, a second introduction opening 9a is formed.

Abstract: A hybrid vehicle (1) 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 (5) driven by an engine (7) skids to rotate excessively, a motor (13) 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 (4) by a motor (12) of another wheel by using electric energy recovered by the regenerative operation.

Abstract: A power source unit for use in vehicle is disclosed that effectively transfers energy between two power sources. The power source unit includes a main power source connected to input terminals of a current control circuit, such as insulation type power transfer circuit. In addition, a terminal of the main power source is connected to an output terminal of the current control circuit. The other terminal of the main power source is connected to a terminal of a parallel connection of a secondary power source and an electric power unit. The other terminal of the parallel connection is connected with a second output terminal of the current control circuit. Hence, energy from the main power source is transferred to the parallel connection of the secondary power source and electric power unit under the control of the current control circuit.

Abstract: A thermosetting resin based, rubber vulcanization type, fiber reinforced composite material characterized in that, in a thermosetting step of a molding of said fiber reinforced composite material, a rubber material is simultaneously vulcanized integrally with said thermosetting resin, in order to impart improved qualities, such as chemical resistance, oil resistance, a quality of being airtight or waterproof, sealing properties, a capacity for electrical insulation and a capacity to dampen vibrations, to said composite material.

Abstract: 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.

Abstract: A drive for an electric vehicle includes by forming a drive unit 8 having a transmission by combining a single propelling motor 7 with the transmission, respectively interconnecting the drive unit 8 with propelling wheels to be a drive wheel, and separately controlling the drive units 8. Besides, traveling speed detecting means are provided on the respective drive units 8, 8, and the respective drive units are simultaneously controlled according to a revolution signal from one of the traveling speed detecting means. A method for controlling an electric vehicle by separately controlling the drive units 8, 8, making the output torque of the motor zero or minimum during the gear change, and producing again the output torque of the motor after completing the gear change.

Abstract: An electric motor vehicle having a drive system comprises a controller including an inverter device. The inverter comprises first and second series of semiconductor switches which is arranged in parallel with a power source. When a key switch provided between the power source and the first series of the semiconductor switches is open in a stop mode of the vehicle, a signal is given to a control terminal of only the second series of the semiconductor switches to prevent a short circuit of a main battery.

Abstract: An electric motor vehicle comprises as a drive system a battery, a motor, and a controller for controlling the rotation of the motor. The electric motor vehicle disposes an accelerator for controlling speed of the motor, a key switch for turning on or off the motor and the controller, a circuit for judging an opening/closing state of the accelerator when the key switch is turned on, and a circuit for preventing the rotation of the motor when the key switch is turned on with the accelerator open.

Abstract: A battery control system for an electric vehicle 1 which includes a propelling motor (7) and an electric power unit(10)for driving the motor comprises a plurality of discrete batteries (13a) to (13d) connected in series and outputting a predetermined motor voltage, a plurality of selection switches (25a) to (25h) which are provided corresponding in number to the discrete batteries(13a)to (13d) and selectively connect one of the discrete batteries (13a) to (13d) in parallel to a control circuit (16), a judging device (23) which determines a state of electric energy possessed by each of the discrete batteries (13a) to (13d) and a control device (23) which selects one of the discrete batteries(13a) to (13h) having a maximum energy based on the state of electric energy as determined by the judging device and activates one of the corresponding selection switches (25a) to (25h) accordingly, and a control stabilization circuit (24) provided between the selection switches (25a) to (25h) and the control circuit (16) t

Abstract: A control apparatus by which a duty ratio in consideration of how energy stored in storage cells is consumed is set to ensure a steady traveling feeling, a regeneration brake which can produce stable braking forces regardless of how storage cells are consumed, and a protective device by which a plurality of operation stop levels are set to be able to cancel the stop operation effected for the first time and to ensure reliable alarming, are provided. In the first and second embodiments, a chopper duty ratio is compensated depending on how storage cells are consumed, to provide a steady agreeable traveling feeling. In the third embodiment, regenerated electric power is consumed by a motor driving circuit to stabilize operation of a regeneration brake regardless of how storage cells are consumed, and improve performance thereof.

Abstract: An electric motor vehicle includes a motor case having first and second hollow section, with the first hollow section having a smaller diameter than that of the second hollow section, forming a step between the first and second hollow sections; a stator provided in the second hollow section and having an end engaged with the step; a motor cover having a cylindrical projection in sliding relationship to the second hollow section and sufficiently long to press the stator against the step and provide a space between the motor case and the motor cover for a minimum thickness of the stator; and a filler made of a liquid packing provided in the space between the motor case and the motor cover for sealing the motor against winds and rains.

Abstract: An electric power apparatus and a power transmitting apparatus of an electric vehicle are each constructed as a unit structure to improve the overall range and reliability of the electric vehicle. In the electric vehicle including, as a power system, a battery power supply, a motor, and a controller for controlling rotation of the motor, an electric power unit comprises a plurality of storage cells making up the battery power supply, a case housing the storage cells, a motor driving circuit and a charger both mounted on the case, a plate substrate covering the storage cells, and sockets for connecting respective terminals of the storage cells, the motor driving circuit and the charger.