Honda Motor Co., Ltd.

Eri Kubota

Shintaro Kameda

Kohei Iizuka

Masayuki Sadakiyo

Naomichi Tonokura

Kohsaku Matsuo

A vehicle control device includes: a unit that acquires a first transmission torque transmitted in a first state in which a control pressure is controlled to a first pressure value, and a second transmission torque transmitted in a second state in which the control pressure is controlled to a second pressure value; a control unit including a storage unit that stores control data including data indicating a relationship between a friction coefficient and a surface pressure. The control unit calculates a first friction coefficient based on the data and the first pressure value, calculates a second friction coefficient based on the data and the second pressure value, calculates an estimated value of the touch point pressure based on the first and second pressure values, the first and second transmission torques, the first and second friction coefficients to control data based on the estimated value.

Vehicle control device

A control apparatus for an automatic transmission includes a vehicle speed detector and a controller. The vehicle speed detector is configured to detect a vehicle speed. The controller is configured to set one of a plurality of gear change stages according to a running condition of a vehicle and configured to select one of a plurality of engagement combination states of a plurality of engagement mechanisms to achieve, according to the vehicle speed detected by the vehicle speed detector, at least one gear change stage out of the plurality of gear change stages in a case in which the controller sets the at least one gear change stage. The at least one gear change stage has the plurality of engagement combination states to achieve the at least one gear change stage.

Control apparatus for automatic transmission

An oil strainer for a vehicle transmission includes a body case, a suction port member, a suction port, and a connection tube. The body case contains a filtering member. The suction port member is separated from the body case. The suction port is provided in the suction port member. The connection tube has flexibility or stretchability and connects the body case to the suction port member. The connection tube has a structure which is bent or which is expanded and contracted to allow the suction port member to move while following a change in an oil surface of oil in a transmission casing of the vehicle transmission so that the suction port is not exposed at the oil surface when a position of the oil surface varies due to lean of a vehicle or acceleration/deceleration applied to the vehicle.

Oil strainer for vehicle transmission

A control apparatus for an automatic transmission includes a running condition detector and a controller. a plurality of gear change stages include at least one specific gear change stage that has a specific transmission gear ratio, that involves at least one necessary engagement mechanism which needs to be engaged in order to obtain the specific transmission gear ratio, and that involves at least one no-change engagement mechanism which causes no change in the specific transmission gear ratio. Both of the at least one necessary engagement mechanism and the at least one no-change engagement mechanism are engaged during a time period from a timing to begin an operation to change a gear change stage to the specific gear change stage until a timing to complete the operation. The at least one no-change engagement mechanism is released after the timing to complete the operation.

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Wako, Japan

Eri Kubota