A vehicle control device configured to be capable of executing idle stop control to automatically stop an engine when a predetermined automatic stop condition is satisfied and restart the engine when a predetermined restart condition is satisfied during the automatic stop of the engine, the vehicle control device includes: a start request detector, a shift position detector, and a delay time setting module. A start request detector detects a driver operation indicating a request for starting the engine by a driver. A shift position detector detects a shift position of a shift changer. A delay time setting module sets, on a basis of presence or absence of the driver operation and the shift position, a delay time from when the engine is restarted until when an automatic stop of the engine is permitted.

Provided are a control device and a control method of a continuously variable transmission capable of preventing an endless member from slipping even when a parking lock is released. On a condition that a vehicle is in an idling stop state and a parking lock mechanism is in a parking lock state, rotation speed increase control configured to increase a rotation speed of an electric oil pump is executed so that the endless member can be prevented from slipping with respect to a driven pulley even when the parking lock mechanism is switched to a parking lock released state.

A method for detecting an oil leakage of a main pump during a stopping process of an internal combustion engine, where the oil leakage is caused by a reversal of a direction of rotation of a crankshaft of a vehicle including an electric auxiliary pump and the main pump, where the main pump is driven by the internal combustion engine of the vehicle. The method includes determining whether a rotational speed of the electric auxiliary pump exceeds a predefined threshold value, and when the rotational speed of the electric auxiliary pump exceeds the predefined threshold value for the rotational speed, detecting that the main pump is leaking, recording an error in an error memory of the vehicle, and demanding an engine start.

A drive system is provided with a first motor generator as a power source, and a multistage gear transmission for changing the speed of output from the first motor generator and transmitting the output to drive wheels. The multistage gear transmission has a plurality of engagement clutches as shifting elements that are meshingly engaged upon movement from a disengaged position. This hybrid vehicle is provided with a start control device where, when a start clutch has been engaged while the vehicle is stopped, the start control device maintains the engagement of the start clutch for a duration that includes when the vehicle is stopped and until the next vehicle start.

A vehicle drive device includes a control portion that is allowed to execute a control mode that controls multiple hydraulic elements to cause a vehicle in a stop state of an engine to start moving. The control mode starts controlling part of the multiple hydraulic elements before the engine is started, by using oil pressure accumulated in an accumulator (S8). The control mode starts controlling the rest of the multiple hydraulic elements by using oil pressure that is provided after the engine is started (S16).

A transmission assembly including a clutch system, an accumulator, and a controller is provided. The clutch system may include a flow source. The accumulator may be selectively in communication with the flow source via a solenoid valve. The controller may be programmed to, responsive to detection of a vehicle stop and the accumulator charged below a predetermined threshold, output a command to open the solenoid valve to rapidly charge the accumulator from the flow source. The predetermined threshold may be an accumulator pressure between 700 kPa and 900 kPa. The controller may be further programmed to, responsive to detection of the accumulator being charged to or above the predetermined threshold, output a shut down command to an engine in communication with the transmission assembly and to output a close command to the solenoid valve. The flow source may be a pump out circuit or a line pressure circuit.

Systems and methods for starting an engine that is incorporated into a hybrid vehicle driveline are described. In one example, a torque converter clutch is fully opened if a threshold amount has transpired after a request for torque converter clutch slip is requested but not delivered. Further, the torque converter clutch may be fully opened if a commanded torque converter clutch torque capacity is less than a threshold torque capacity.

A hydraulic system (1) of an automatic transmission of a motor vehicle includes a hydraulic pump (2) powered by a drive engine for supplying pressure to the hydraulic system (1). A hydraulic reservoir (10) by which, when the drive engine is at rest, a pressure drop in a main pressure circuit (7) of the hydraulic system (1) can at least be delayed. The hydraulic reservoir (10) is connected to the main pressure circuit (7) by way of an orifice (14) or a throttle.

A control device obtains a specification of a vehicle-mounted device which is mounted on a vehicle, and implements a control according to the specification. The vehicle-mounted device includes a transmission unit that transmits a specific signal that enables the specification of the vehicle-mounted device to be obtained. The control device includes a receiving unit which is configured to be able to receive the specific signal, and a learning unit that learns that the specification of the vehicle-mounted device is a first specification if the receiving unit does not receive the specific signal, and learns that the specification of the vehicle-mounted device is a second specification, which is different from the first specification, when the receiving unit receives the specific signal.

A method for maintaining idle noise refinement in a vehicle is provided. The method may include performing a D-range neutral control, wherein a controller is configured to apply auto hold threshold values to conditions for entering an auto hold control in a neutral control state, and wherein the auto hold threshold values are determinant of an entry into the D-range neutral control such that the auto hold threshold values limit the conditions for entering the auto hold control.