Patent application number | Description | Published |
20100241326 | Control apparatus for automatic transmission - A control apparatus for an automatic transmission, the control apparatus includes a main pump that is rotation driven by an engine and supplies hydraulic oil via an oil passage of a vehicle automatic transmission; an auxiliary pump that is rotation driven by an electric motor and supplies hydraulic oil to the oil passage to assist the main pump; a regulator valve that regulates a line pressure of the oil passage to a predetermined value; a regulator valve control section that sends a command to regulate the line pressure to the regulator valve; a line pressure obtaining section that obtains the line pressure of the oil passage; and an auxiliary pump start section that controls starting of the auxiliary pump. | 09-23-2010 |
20100250075 | Vehicle control device and vehicle drive system - A vehicle control device for controlling a vehicle drive device that includes an input member that is drive coupled to an engine, an output member that is drive coupled to a wheel, and a transmission apparatus that has a plurality of engaging elements, that switches a plurality of shift speeds by controlling engaging and releasing of the plurality of the engaging elements, and that transmits to the output member a rotational driving force of the input member by shifting the rotational driving force at gear ratios of the plurality of the shift speeds. | 09-30-2010 |
20120081051 | CONTROL DEVICE - 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. | 04-05-2012 |
20120083953 | CONTROL DEVICE - A control device capable of executing damping control of outputting a damping torque command that suppresses vibration of a rotational speed of a rotating electrical machine caused at least by elastic vibration of a power transmission mechanism. This is accomplished by using feedback control based on the rotational speed of the rotating electrical machine. The control device executes the damping control by a direct-coupling damping controller when the engagement state of the engagement device is a direct-coupling engagement state in which there is no rotational speed difference between engagement members, and executes the damping control by a non-direct-coupling damping controller different from the direct-coupling damping controller in a case where the engagement state of the engagement device is a non-direct-coupling engagement state other than the direct-coupling engagement state. | 04-05-2012 |
20120264565 | CONTROL DEVICE - 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. | 10-18-2012 |
20120271498 | CONTROL 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. | 10-25-2012 |
20140088812 | CONTROL DEVICE - 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. | 03-27-2014 |
20140088813 | CONTROL DEVICE - 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 executes mode shift control from a first control mode to a third control mode via a second control mode. The first, second and third control modes being modes in which the rotating electrical machine generates electricity with: (i) both the first and second engagement devices in a direct engagement state, (ii) the first engagement device in the direct engagement state and the second engagement device in the slip engagement state, and (iii) both the first and second engagement devices in a slip engagement state. | 03-27-2014 |
20140094342 | CONTROL DEVICE - 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. | 04-03-2014 |
20140162841 | CONTROL 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. | 06-12-2014 |
20140371029 | CONTROL 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. | 12-18-2014 |
Patent application number | Description | Published |
20090105918 | VEHICLE CONTROL DEVICE - 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. | 04-23-2009 |
20090242290 | DRIVE CONTROL DEVICE - A drive control device for a drive unit has a mechanical pump operated by a rotational driving force of a drive member drivingly connected with a drive power source, an electric pump that supplements the mechanical pump, and an electric pump driver that controls a drive current to a motor of the electric pump. The drive control unit is also provided with a driver temperature evaluation unit that evaluates a temperature of the electric pump driver, and an electric pump control unit that cuts off a power source of the electric pump driver if it is determined by the driver temperature evaluation unit during operation of the electric pump driver that a prescribed first warning state, which is a state pertaining to the temperature of the electric pump driver, has been reached. | 10-01-2009 |
20090271079 | VEHICLE CONTROL APPARATUS - 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. | 10-29-2009 |