Patent application number | Description | Published |
20080318730 | Power Output Apparatus, Drive System, and Control Method of Power Output Apparatus - The technique of the invention is applied to a motor vehicle where an engine and a first motor are linked to a driveshaft via a planetary gear mechanism, a second motor is linked to the driveshaft via a transmission, and a battery is arranged to receive and transmit electric power from and to the first motor and the second motor. In response to a deviation of the charge-discharge state of the battery from an allowable control range set as an allowable charge state range of the battery during an upshift, gear change control of the invention sets a gearshift condition change flag F | 12-25-2008 |
20090038387 | Abnormality determination device and abnormality determination method of vehicle - An abnormality determination device and an abnormality determination method of a vehicle that includes a stepped type automatic transmission capable of forming a plurality of speed change steps are provided. The presence/absence of an abnormality of an element related to formation of a predetermined speed change step is determined in a state of the vehicle where the predetermined speed change step is formed. Information about the abnormality determined to be present is then stored. If the information about the abnormality is stored when the vehicle is to newly start to run, the predetermined speed change step where the abnormality stored occurred is established, and the presence/absence of the abnormality of the element related to the formation of the predetermined speed change step is re-determined. | 02-12-2009 |
20100102767 | CONTROL APPARATUS FOR HYBRID DRIVE SYSTEM - A control apparatus for a hybrid drive system including a main drive power source, an electric generator, a wheel-side output shaft, a power distributing mechanism for distributing the drive force of the main drive power source to the electric generator, the wheel-side output shaft and an automatic transmission, and an electric motor connected to the wheel-side output shaft through the automatic transmission, the control apparatus including a motor-output limitation control device for implementing an output limitation of the electric motor according to a requirement for the output limitation, and a motor-output limitation inhibiting device to inhibit the output limitation of the electric motor by the motor-output limitation control device, during a shift-up action of the automatic transmission, or a motor-output increasing device to control the electric motor to increase its output so as to offset the output limitation of the electric motor implemented by the motor-output limitation control device according to a requirement for the output limitation during a shift-up action of the automatic transmission. | 04-29-2010 |
20100223986 | ANOMALY DETECTION APPARATUS FOR AUTOMATIC TRANSMISSION - One embodiment of the present invention provides an anomaly detection apparatus for an automatic transmission, the automatic transmission including an electrically-operated oil pump that is rotationally driven by an electric motor, including: a solenoid that is capable of switching a line pressure of a hydraulic control circuit that controls the automatic transmission between a high pressure and a low pressure; and an oil pressure switch that is turned on or off in response to the line pressure, wherein, in response to an oil pressure command value, whether the oil pressure switch is turned on or off according to the oil pressure command value is determined, and the determination and a load state of the electrically-operated oil pump are compared so as to distinctively determine in which of the solenoid and the oil pressure switch, an anomaly has occurred. | 09-09-2010 |
20110202231 | VEHICLE CONTROL DEVICE - An ECU is connected to a multi-system shift sensor detecting a shift lever position in a shift direction associated with detection of the R position, and to a multi-system select sensor detecting a shift lever position in a select direction not associated with detection of the R position. When only one or more, but not all, of sensors in the select sensor are abnormal, the ECU controls the shift range according to the shift position detected based on the remaining proper sensor. When only one or more of sensors in the shift sensor are abnormal, the ECU maintains the current range until an operation of a shift lever is detected, and switches the shift range to the N range at the point of time of detecting an operation of the shift lever. | 08-18-2011 |
20110270483 | CONTROL DEVICE FOR VEHICLE HYDRAULIC CONTROL CIRCUIT - A control device for a vehicle hydraulic control circuit having a hydraulic switch disposed on a hydraulic control circuit of an automatic transmission, includes: a malfunction detecting portion configured to detect a malfunction of the hydraulic switch; and a malfunction removing portion configured to execute an operation for restoring a contact of the hydraulic switch when a malfunction of the hydraulic switch is detected. | 11-03-2011 |
20120309590 | VEHICULAR SHIFT CONTROL APPARATUS - A vehicular shift control apparatus for a vehicle provided with a parking lock device selectively switched to a locking position in which rotation of wheels of the vehicle is prevented and a non-locking position in which the rotation of the wheels is not prevented, by an operation of an electrically operated actuator, the vehicular shift control apparatus being configured to perform a failure diagnosis to determine whether the actuator is operable or not, the vehicular shift control apparatus includes: the vehicular shift control apparatus permits the operation of the actuator if a supply voltage to the actuator is raised from a value lower than a predetermined threshold supply voltage value to a value not lower than the threshold supply voltage value after a determination that the actuator is inoperable is obtained in the failure diagnosis. | 12-06-2012 |
20140179488 | CONTROL APPARATUS AND CONTROL METHOD FOR HYBRID VEHICLE - Controlling a hybrid vehicle includes: reducing a rotation speed of a motor generator before a locking apparatus that locks the motor generator is switched from a disengaged condition to an engaged condition; starting to switch the locking apparatus to the engaged condition when the rotation speed decreases to a predetermined operation permission rotation speed; controlling the locking apparatus such that from the start of the switch to the engaged condition onward, the rotation speed decreases from the operation permission rotation speed to an engagement rotation speed with the motor generator in the engaged condition; and controlling the locking apparatus such that a decrease rate of the rotation speed when switching from the disengaged condition to the engaged condition in a low torque operation mode is higher than the decrease rate of the rotation speed when switching from the disengaged condition to the engaged condition in a high torque operation mode. | 06-26-2014 |
20150024902 | DRIVE DEVICE FOR HYBRID VEHICLE - A drive device of a hybrid vehicle includes an engine and an electric motor acting as power sources, and further includes: a first rotating member coupled to the electric motor; a second rotating member to which power from the engine is transmitted; and a gear pair made up of helical gears formed on the first rotating member and the second rotating member to couple the first rotating member and the second rotating member in a power transmittable manner, within a case, an inner wall extending from an outer wall of the case toward an inside of the case is in the case, and an elastic member pressing the first rotating member toward the inner wall is provided in a preloaded state between the first rotating member and the inner wall. | 01-22-2015 |