Patent application number | Description | Published |
20090091866 | SHIFT SWITCHING DEVICE AND SHIFT SWITCHING METHOD - A shift-by-wire shift switching device and shift switching method that switch a shift range of an automatic transmission using an electric motor. The shift switching device includes a controller that determines whether a fault has occurred in a current supply line of each phase of the electric motor on a phase-by-phase basis, executes an open-loop control of the electric motor using only the phases in which it has been determined that a fault has not occurred, and determines whether a fault has occurred in the current supply line by detecting an activation state of the electric motor when the open-loop control of the electric motor is executed. Therefore, it is possible to determine whether a fault in the motor is a short-circuit fault or a break fault, without addition of a part such as a short-circuit detection sensor. | 04-09-2009 |
20090176619 | VEHICLE CONTROL APPARATUS - Control apparatuses ( | 07-09-2009 |
20100168954 | VEHICLE CONTROL APPARATUS - In a control apparatus of a vehicle according to an embodiment of the present invention, there is a failsafe control that blocks power transmission from a drive source to drive wheels by releasing clutches of an automatic transmission when there is a shift switching failure. In consideration of the fact that when a working oil temperature of the automatic transmission is low (below the freezing point, for example), the viscosity of the working oil is high and response for power blocking is poor, in a case where an oil temperature at the time of a shift switching request is low (steps ST | 07-01-2010 |
20130111891 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 05-09-2013 |
20140230423 | VEHICLE DRIVE DEVICE - A vehicle drive device for a rotary electric machine. A case of the device includes a support wall portion that extends in a radial direction of the rotary electric machine at a location between the rotary electric machine and the fluid coupling in the axial direction. A first bearing and a second bearing that is separate from the first bearing are disposed at different positions in the radial direction from each other, the first bearing being configured to support the rotor member in the radial direction so as to be rotatable with respect to the support wall portion, and the second bearing being configured to support the coupling input member in the radial direction so as to be rotatable with respect to the support wall portion. | 08-21-2014 |
20140305389 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-16-2014 |
20140305721 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-16-2014 |
20140311425 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-23-2014 |
20140336893 | VEHICLE CONTROL DEVICE - A vehicle control device includes: an engine and a first motor generator from both of which a driving force for traveling is output to drive wheels; and an electricity storage device that storages electric power for driving the first motor generator. When a vehicle weight is in a reference state at a time of deceleration braking, the first motor generator is mainly caused, out of the first motor generator and the engine, to generate a braking force, and when the vehicle weight is greater than that in the reference state, the engine is mainly caused, out of the first motor generator and the engine, to generate the braking force. Thus, a sufficient braking force can be obtained while an input limit of the electricity storage device is prevented from being reached. | 11-13-2014 |
20140342873 | VEHICLE CONTROL APPARATUS - To provide a vehicle control apparatus which can suppress a shock in a clutch from being generated at a time of starting an engine by a motor in a vehicle having the clutch provided therein between the engine and the motor, thereby improving a drivability of the vehicle. Provided is a vehicle control apparatus, comprising: an engine, a motor generator connected to vehicle wheels of a vehicle, and a clutch that switches a transmission state between a disengaging state and an engaging state, in which the vehicle control apparatus switches the clutch in the engaging state to start the engine by the motor generator. When the engine is started by the motor generator, the vehicle control apparatus constantly keeps the compensation torque of the motor generator smaller than the clutch torque of the clutch. | 11-20-2014 |