Toyota Jidosha Kabushiki Kaisha

Kaoru Kubo

Eiji Yamada

Ryoji Mizutani

Yasutomo Kawabata

Takashi Amano

Hiroki Kato

Hideo Nakai

Tetsuya Miura

Sumikazu Shamoto

Kenji Hiramoto

Taishi Hisano

Shintaro Chinen

Yasushi Ozawa

Provided is a rotating electrical machine wherein it is possible to sufficiently cool an electronic device attached to a rotor by means of a liquid refrigerant. A rotor for a rotating electrical machine is provided with a shaft supported in a rotatable manner, a rotor core secured to the shaft, an electronic device disposed so as to rotate along with the shaft and the rotor core, a coil wound around the rotor core and connected to the electronic device, and a cooling structure for sequentially cooling the electronic device and the coil by means of a liquid refrigerant supplied from the shaft.

Rotor for rotating electrical machine, and rotating electrical machine provided with said rotor

A rotor for a rotating electrical device includes: a rotor coil that is wound on each of the rotor salient poles; a retaining member that is supported by a rotor core; and an outer magnetic member. The retaining member has a beam bridged between the adjacent rotor salient poles and prevents the rotor coil from falling out. The outer magnetic member is provided in an end of the beam.

Rotor for rotating electrical device

A display device includes: first setting means for setting a first operation amount to be performed by an occupant so as to increase an output in a state in which a vehicle speed is less than a predetermined threshold; second setting means for setting a second operation amount to be performed by the occupant such that an operation state of the vehicle can be shifted to a desired state in which optimal instantaneous fuel consumption is realized, by decreasing the output in a state in which the vehicle speed is equal to or greater than the predetermined threshold; and display means for displaying, on a display unit, at least one of the first operation amount and the second operation amount, and a present operation amount which is an operation amount performed at present by the occupant.

Display device

In a power output apparatus 10, a complex motor 30 includes a stator 32, a rotor 34 linked with a crankshaft 56 of an engine 50, and a rotor 36 linked with a drive shaft 22, wherein the stator 32 and the rotor 34 constitute a first motor MG1 constructed as an induction motor and the stator 32 and the rotor 36 constitute a second motor MG2 constructed as an induction motor. A driving circuit 92 regulates the frequency of an exciting electric current to be flown through three-phase coils 38 of the stator 32 within a range between the frequency of the rotor 34 and the frequency of the rotor 36. This procedure enables the first motor MG1 and the second motor MG2 to function respectively as a generator and a motor. Electromagnetic energy regenerated by the first motor MG1 is supplied to the second motor MG2 not via the driving circuit 92 but directly from the stator 32. Compared with a system for driving a motor via a driving circuit, such as an inverter, the structure of the present invention enhances the energy efficiency of the power output apparatus 10 and reduces the size of the whole power output apparatus 10.

Power output apparatus

A hybrid vehicle having as a control mode at least a continuous-type parallel series hybrid vehicle (PHV) mode and a series hybrid vehicle (SHV) mode, and a control method thereof. A torque distributing mechanism is provided to distribute the output torque of an internal combustion engine (ICE) to a generator and a motor. A braking mechanism and a clutch are provided in this order between the torque distributing mechanism and the motor. The torque distributing mechanism and the motor are connected by the clutch to keep a power transmission efficiency from the ICE to driving wheels at a high value without depending on the vehicle speed in the continuous-type PHV mode. A battery can be recharged even when the vehicle is not running, by releasing the connection between the torque distributing mechanism and the motor by the clutch. When switching to the SHV mode, the motor side output shaft of the torque distributing mechanism is stopped by the braking mechanism to prevent the ICE from overrunning. An SOC sensor is used to detect the state of charge (SOC), of the battery, and when the SOC is lowered, the control mode is forcedly or automatically switched to the SHV mode. The generated power of the generator is controlled to a very small level to substantiate creeping.

Hybrid vehicle and its control method

A motor coil structure has a lamination of in-slot coils incorporated into slots in a stator core and inter-slot connecting wires individually connecting to the end faces of the in-slot coils. Each of the inter-slot connecting wires is in the form of a bar such that the in-slot coils received in two different slots spaced away from each other by slots equal in number to n-1 (where n is the number of phases). Since the space factor depends on the lamination of in-slot coils in the slot, any clearance in the slot can be eliminated to improve the space factor compared with a motor coil structure in which a coil is formed by binding and winding a plurality of wires.

Growing community of inventors

Miyoshi, Japan

Kaoru Kubo