Aisin Aw Co., Ltd.

Kabushikikaisha Equos Research

Yasuhiko Kobayashi

Yoichi Tajima

Yoshitaka Murase

Yasuo Yamaguchi

Shigeki Takami

Yuma Mori

Yukinori Nakamori

Yomei Hakumura

Takayuki Kubo

Atsushi Kayukawa

Takeshi Inuzuka

Jin Izawa

Takahiro Kido

Takashi Yoshida

Subrata Saha

Takehiko Suzuki

Shinichi Nomura

Masami Ishikawa

Keiichirou Kusabe

Yoshinori Shibayama

Takahiro Sekii

Kyosuke Komizo

Yasuhiro Ishihara

Tetsuro Kuwano

A control device that includes an electronic control unit that is configured to: detect an actual current value flowing through the solenoid valve; receive a current command value and the actual current value detected and generate a primary command voltage value while feeding back the current command value on the basis of the actual current value; calculate a dither command voltage value to cause a periodic voltage oscillation; filter the actual current value detected to remove a frequency corresponding to a period of the dither command voltage value and output the filtered actual current value; generate a secondary command voltage value by superimposing the dither command voltage value generated on the primary command voltage value generated; convert the secondary command voltage value generated into a PWM signal; and generate, on the basis of the PWM signal generated, an application voltage to be applied to the solenoid valve.

Control device

A lock-up clutch control device that sets a hydraulic pressure command value for a lock-up clutch as a starting device together with a pump impeller coupled to a motor of a vehicle and a turbine runner coupled to an input shaft of a transmission such that an actual rotational speed difference between the motor and the input shaft coincides with a target slip speed that matches a state of the vehicle, and that controls the lock-up clutch based on the hydraulic pressure command value.

Lock-up clutch control device and control method

A rotary electric machine driving device that drives and controls an alternating-current rotary electric machine, the rotary electric machine driving device including: an inverter that is electrically interposed between a direct-current power supply and the rotary electric machine, and converts electric power between a direct current and an alternating current; a smoothing capacitor that is electrically interposed between the direct-current power supply and the inverter, and is connected between a positive pole and a negative pole on a direct-current side of the inverter; and an inverter control unit that controls switching of a switching element of the inverter according to a predefined switching frequency.

Rotary electric machine driving device

A control device that controls a vehicle drive device in which a first engagement device, a rotating electrical machine, a second engagement device, and an output member are sequentially arranged in this order from an input member side on a power transmission path that connects the input member drivingly coupled to an internal combustion engine to the output member drivingly coupled to wheels. The control device controls both the first engagement device and the second engagement device to a slip engaged state, and causes the rotating electrical machine to generate electric power.

A control device for a vehicle drive configured with a power transfer path that includes a first engagement device, a rotary electric machine, and a second engagement device. These elements being arranged in this order from an input member coupled to an engine to an output member that is coupled to the wheels of the vehicle. A mode control unit switches among a first, second, third and fourth control modes in which the rotating electrical machine generates electricity with: (i) both the first and second engagement devices, (ii) both the first and second engagement devices, (iii) the first engagement device in the direct engagement state and with the second engagement device, and (iv) with the first engagement device in the slip engagement state and with the second engagement device.

A control device controls a vehicle drive device in which a first engagement device, a rotary electric machine, a second engagement device, and an output member are arranged on a power transfer path from an internal combustion engine to wheels. The control device executes mode transition control that causes transition from (i) a first control mode in which both the first engagement device and the second engagement device are in a slip engagement state and the rotary electric machine generates electric power to (ii) a second control mode in which the first engagement device is in a direct engagement state, the second engagement device is in the slip engagement state, and the rotary electric machine generates electric power.

A control device for a vehicle drive configured with a power transfer path that includes a first engagement device, a rotary electric machine, and a second engagement device. These elements being arranged in this order from an input member coupled to an engine to an output member that is coupled to the wheels of the vehicle. The control device is configured with an control section that controls output torque of the rotary electric machine such that a rotational speed becomes closer to a target rotational speed with both the first and second engagement devices brought into a slip engagement state and with the rotary electric machine generating electric power. The control section maintains control in which at least one of a temperature of the rotary electric machine and a temperature of an inverter is monitored as a monitoring target temperature.

A control device controls a vehicle drive device including an input member connected to and driven by an internal combustion engine; an intermediate member connected to and driven by a rotating electrical machine; an output member connected to and driven by a wheel; a first engagement device provided between the input member and the intermediate member; and the second engagement device provided between the intermediate member and the output member. The rotating electrical machine generates power while the first engagement device is directly engaged, and has a differential rotation control region wherein the first engagement device is moved from direct engagement to slipping engagement and the second engagement device is moved from disengagement to slipping engagement during special takeoff control, which controls the vehicle so as to take off while the second engagement device is disengaged and the rotating electrical machine is generating power.

A control device configured with an external input estimator that reduces a vibration component of a rotational speed of the power transfer system at a rotational speed of the rotary electric machine and estimates transfer system input torque on the basis of the rotational speed of the rotary electric machine, and that estimates external input torque by subtracting at least output torque of the rotary electric machine from the transfer system input torque. A low-vibration speed calculator calculates a low-vibration rotational speed on the basis of the external input torque and vehicle required torque. A rotational speed controller calculates feedback command torque that matches the rotational speed of the rotary electric machine with the low-vibration rotational speed. A torque command value calculator calculates an output torque command value on the basis of the vehicle required torque and the feedback command torque.

A vehicle control device where, the transmission apparatus is provided with a state in which the rotational driving force is not transmitted from the output member to the input member when a first engaging element is engaged; the vehicle control device is provided with a control unit that controls the transmission apparatus to engage the first engaging element by a hydraulic pressure from the electric pump for implementing the state in an idle stop state in which the vehicle is in a moving state and the engine is stopped; in a case where a travel speed of the vehicle is not greater than a predetermined release threshold value, the first engaging element is engaged by the hydraulic pressure from the electric pump; and in a case where the travel speed of the vehicle is greater than the predetermined release threshold value, all of the engaging elements are released.

Vehicle control device and vehicle drive system for implementing a one-way transmission speed or engaging a first engaging element in an idle stop state

A vehicle control apparatus includes a vehicle drive device having a friction engagement element capable of being engaged and disengaged by an oil pressure generated by an electric oil pump, a start operation detecting unit that detects a start operation of the vehicle, a vehicle status change detecting unit that detects a status change of the vehicle, an electric oil pump control unit that controls the electric oil pump, and a management unit that is connected between the vehicle status change detecting unit and the electric oil pump control unit in a manner capable of transmitting data. The management unit transmits a wakeup signal to the electric oil pump control unit when a status change of the vehicle is detected, and when the wakeup signal is received prior to detection of the start operation, the electric oil pump control unit starts the electric oil pump in response to the wakeup signal.

Vehicle control apparatus

A vehicle control device including an input member drive-connected to a power source; a mechanical pump; an electric pump assisting the mechanical pump; a drive mechanism transmitting the rotational driving force of the input member to an output member; a fluid coupling between the input member and the drive transmission mechanism and including a lock-up engagement element which receives hydraulic oil discharged from the mechanical pump and the electric pump to operate; a state detection unit that detects the state of the one or more factors that the discharge of the electric pump; and a control unit which executes a first or second control mode, wherein the first control mode permits engagement of the lock-up engagement element if a first condition is satisfied based on the one or more factors, and wherein a second control mode inhibits engagement of the lock-up engagement element if the first condition is not satisfied.

Vehicle control device

An electric drive apparatus has an electric motor having a rotor and a stator; and a magnetic pole position detecting portion having a sensor rotor attached to the rotor, and a sensor stator that is adjacent to the stator, and that is fixed to a case, and that extends over a partial region of the sensor rotor extending in a circumferential direction. Because the sensor rotor of the magnetic pole position detecting portion is attached to the rotor and the sensor stator is adjacent to the stator and is fixed to the case, it is no longer necessary to use an all-round embracing type magnetic pole position detecting portion that embraces the entire shaft of an electric machine.

Electric drive control apparatus and method

A drive apparatus includes a motor, a first clutch that transmits and cuts off driving force between the motor and an engine, a second clutch that transmits and cuts off driving force to a wheel side from either or both of the motor and the engine, and a control device that performs operation control for the motor, the first clutch and the second clutch. If there is an engine start request during driving of the wheel by the motor, the control device starts the engine by performing the operation control for the motor, the first clutch and the second clutch based upon control patterns that differ depending on a rotational speed of the motor that is directly or indirectly detected.

Growing community of inventors

Anjo, Japan

Yasuhiko Kobayashi