Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Yukinori Nakamori

Satoru Wakuta

Yoichi Tajima

Yasuhiko Kobayashi

Yoshitaka Murase

Takehiko Suzuki

Atsushi Kayukawa

Shigeki Takami

Satoshi Murakami

Yoshihisa Yamamoto

Takeshi Inuzuka

Masatoshi Adachi

Takayuki Kubo

Kazutoshi Motoike

Kiyotomo Miura

Meio Gi

Yasunori Mano

Yoichi Miyoshi

Hirotaka Mori

In a rotor for the dynamo, the interior circumference face of a rotor core main body makes contact in a thermally transmissible manner with a rotor axle, and the rotor axle includes a cooling medium circulation space. The rotor is provided with a cooling medium supply member, which supplies the cooling medium to the cooling medium circulation space. The cooling medium supply member is provided with a cooling medium supply path that extends in the rotor axle direction, and cooling medium supply holes that extend externally in the direction of the rotor diameter. The cooling medium supply holes are provided with supply apertures that open toward the cooling interior circumference face. The rotor axle is provided with cooling medium discharge holes that extend externally in the direction of the rotor diameter. The cooling medium discharge holes are provided with discharge apertures that open externally in the diameter direction.

Rotor for rotating electric machine

A cooling structure of a stator, including a case that accommodates a rotating electrical machine, and cooling a coil end portion protruding from a stator core included in the stator of the rotating electrical machine. The structure supplies a cooling medium from the stator axial direction toward a gap that is formed between an inner surface of the case and an outer edge of the stator core. The cooling medium introducing gap is formed above a portion of the coil end portion to which the cooling medium is to be supplied. A storage space forming member is provided along an outer peripheral surface of the coil end portion. The storage space forming member has a contact portion having a first contact portion that contacts the inner surface of the case to close the cooling medium storage space on the one side in the stator axial direction.

Cooling structure of stator

The controller includes motor control means for controlling the drive RPM of a motor generator to reach a specified RPM less than the idle RPM when the braking condition of a foot brake is detected by a brake-operating-state detecting means while a motor generator is being rotated at an idle RPM or more. This reduces uncomfortable shock which tends to occur because of a change in the rotation of the motor during braking as much as possible to improve drive feeling.

Hybrid vehicle controller

The drive unit for a vehicle has an engine driving control element for driving a first motor on the basis of an engine driving signal, and driving a second motor so as to restrain a reaction force in a power distributing planetary gear due to the driving of the first motor in a state in which the stepped speed change gear connects the second motor and an output shaft by brakes. Further, the drive unit has an electrically operated oil pump for generating an operating oil pressure of the brakes, and also has a control section having an electrically operated oil pump operation control element for operating the electrically operated oil pump prior to the control of the engine driving control element on the basis of an engine starting signal outputted in a vehicle stopped state.

Drive unit for vehicle

A vehicle and method of operating a vehicle including a motor that supplies a driving force to a wheel, a battery that supplies electric power to the motor and receives regenerative electric power from the motor and a controller that detects a state of the battery and sets, based on a detected state of the battery, a first upper limit value and a first lower limit value for a voltage value and an electric current value that is output from the battery to the motor, and a second upper limit value and second lower limit value for the voltage value and the electric current value that is input from the regenerative electric power to the battery.

Vehicle controller that stably supplies power to a battery and method thereof

A control device for a vehicle including a motor, an engine, wherein the motor can be drivingly connected with the engine, a torque converter, a transmission mechanism for transmitting the drive torque, which is transmitted via the torque converter from the engine and the motor, to drive wheels, and a controller that controls a driving state of the motor, controls a driving state of the engine, and outputs a torque reduction command for controlling a drive torque of the motor in order to place the drive torque of the motor within a maximum input torque of the transmission mechanism, wherein the maximum input torque is calculated based on a torque ratio of the torque converter when the engine begins driving after the motor begins driving.

Control device for vehicles

A control device for hybrid vehicles, including a motor drivingly connected to an engine, a transmission that transmits output torques of the engine and the motor to drive wheels, and a controller that performs torque reduction control by which an input torque to the transmission is reduced, wherein when torque reduction control is consecutively performed, the input torque is reduced at least once by a negative torque output from the motor.

Control device for hybrid vehicles

A controller of a vehicle for igniting, i.e., starting-up an engine on the basis of a load condition. When a starting condition judging device judges that the vehicle is advanced, i.e., starts moving, during an idle stop, an engine water temperature detector and a lubricating oil temperature detector of a load condition detector detect, e.g., the water temperature of the engine and the temperature of lubricating oil of an automatic speed change gear as a load condition having an influence on the magnitude of the load torque given to a motor. When an ignition condition setting device sets an ignition condition for starting the engine on the basis of the load condition and an ignition condition judging device judges that the ignition condition occurs, an engine ignition device ignites the engine. Thus, when the load with respect to the motor is large, the engine is ignited from low speed rotation and electric power consumption is reduced. In contrast to this, when the load is small, the engine is ignited by high speed rotation and the consumption of fuel is reduced. Thus, fuel cost of the vehicle is improved.

Controller of vehicle

A vehicle control apparatus including an engine, an automatic transmission, a hydraulic servo, a mechanical oil pump, an electric oil pump and a controller that controls driving of the electric oil pump and generates a standby pressure supplied to the hydraulic servo based upon a driving state of the mechanical oil pump, wherein the standby pressure is set less than a line pressure generated based upon driving the mechanical oil pump during idling and equal to or greater than an engagement starting pressure by which the friction engagement element starts transmitting a torque.

Vehicle control apparatus

The clutch oil pressure (P ) supplied to a hydraulic controller of an automatic transmission is detected. If it is detected that the clutch oil pressure (P ) is less than or equal to a first threshold value P when a first oil pump cooperative with a drive power source is to stop, the second oil pump is driven. Therefore, after the oil pressure (for example, P ) remaining from the first oil pump has decreased, the second oil pump is driven, and an oil pressure (P ) needed for the hydraulic control of friction engagement elements is maintained. If it is detected that the clutch oil pressure (P ) is greater than or equal to a second threshold value (P ) when the first oil pump is to be driven, the second oil pump is stopped. Therefore, the second oil pump is stopped when the oil pressure provided by the first oil pump rises to such a level that the oil pressure (P ) can be secured. Thus, the load on the second oil pump is reduced so as to allow it to be reduced in size.

Oil pump drive control apparatus

The present invention provides a drive control apparatus for driving an electric oil pump by supplying it with a predetermined operating voltage so as to decrease a load on the electric oil pump. The drive control apparatus detects a clutch hydraulic pressure supplied to the hydraulic control apparatus for the automatic transmission and drives the electric oil pump so that a required hydraulic pressure is maintained. In this case, the drive control apparatus detects an oil temperature of the hydraulic control apparatus for the automatic transmission, controls the operating voltage of the electric oil pump based on the oil temperature, and supplies the operating voltage to th electric oil pump. Accordingly, the hydraulic pressure supplied from the electric oil pump maintains the hydraulic pressure required for the hydraulic control of the automatic transmission and prevents supply of a greater hydraulic pressure than is required.

Drive control apparatus for oil pump

A driving control device of a vehicle including an automatic transmission with a hydraulic control device which hydraulically controls an engagement of the frictional engagement element, a mechanical oil pump which is driven by the engine and supplies hydraulic pressure to the hydraulic control device and an electric oil pump which supplies hydraulic pressure to the hydraulic control device and a motor connected to the mechanical oil pump and transmitting the driving force to the automatic transmission, wherein the electric oil pump supplies oil to the hydraulic control device at an engine automatic stopping control time at which the driving of the engine is automatically stopped after the vehicle stops and a predetermined condition is established and the motor is driven so that said mechanical oil pump supplies the oil to the hydraulic control device during the engine automatic stopping control at a time when the electric oil pump can not be driven.

Growing community of inventors

Anjo, Japan

Yukinori Nakamori