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US 7,678,020 B2Granted
Vehicle control apparatus
AssigneeHitachi, Ltd.
InventorsTetsuo Matsumura, Yoshiyuki Yoshida, Kinya Fujimoto, Kentaro Shishido
Life of this patent
Estimating the term…
Abstract
A vehicle clutch has a pushing member that is energized against a friction plane and transfers power from a driving power source when it touches the friction plane. The location of the pushing member can be retained even when power is shut off. After a signal from the key switch ends, the control apparatus stops the driving power source and the vehicle, engages the friction transfer mechanism, and then stops the system.
Claims3
A vehicle control apparatus comprising
- a friction transfer mechanism that transfers power from a driving power source by pushing a pushing member against a friction plane by an energizing mechanism, and
- an electrically-operated mechanism that disengages and engages the friction transfer mechanism by controlling the position of the pushing member and is configured to keep the pushing member at the current position even when electric power is shut off;
- wherein,
- after receiving a System Stop command signal, the vehicle control apparatus is configured to detect that the driving power source and the vehicle have stopped and that the transmission mechanism is in a neutral gear position, moves mesh type mechanisms to the neutral gear position if the mesh type mechanisms are not in the neutral gear position, engage the friction transfer mechanism, and stop the system.
1 more element
A vehicle control apparatus comprising
- a friction transfer mechanism that transfers power from a driving power source by pushing a pushing member against a friction plane by an energizing mechanism,
- a gear type transmission comprising an input shaft which rotates by torque coming from the friction transfer mechanism, an output shaft which outputs torque to a drive shaft, multiple gear pairs which rotate between the input shaft and the output shaft, and multiple mesh type mechanisms which accomplish preset gear positions by coupling one of the gear pairs to the input or output shaft,
- an electrically-operated mechanism which disengages and engages the friction transfer mechanism by controlling the position of the pushing member and can retain pushing member at the current position when electric power is shut off, and
- a mesh type operation mechanism which controls positions or loads of the multiple mesh type mechanisms;
- wherein
- after receiving a System Stop command signal, the vehicle control apparatus detects that the driving power source and the vehicle have stopped, moves the mesh type mechanisms to the neutral position if the mesh type mechanisms are not in the neutral position, engages the friction transfer mechanism, and stops the system.
3 more elements
A vehicle control apparatus comprising
- a friction transfer mechanism that transfers power from a driving power source by pushing a pushing member against a friction plane by an energizing mechanism,
- a gear type transmission comprising an input shaft which rotates by torque coming from the friction transfer mechanism, an output shaft which outputs torque to a drive shaft, multiple gear pairs which rotate between the input shaft and the output shaft, and multiple mesh type mechanisms which accomplish preset gear positions by coupling one of the gear pairs to the input or output shaft,
- an electrically-operated mechanism that disengages and engages the friction transfer mechanism by controlling the position of the pushing member and keeps the pushing member at the current position even when electric power is shut off, and
- a mesh type operation mechanism which controls positions or loads of the multiple mesh type mechanisms;
- wherein
- the vehicle control apparatus further comprises
- a section to acquire a System Stop command signal of the vehicle,
- a section to control the electrically-operated mechanism which receives a System Stop command signal by the stop mechanism, detects that the driving power source and the vehicle have stopped, outputs a Move signal to move the mesh type mechanism to the neutral position to the mesh-type mechanism if the multiple mesh type mechanisms are not in the neutral position, and outputs an Engage signal to the electrically-operated mechanism to engage the friction transfer mechanism after detecting the mesh type mechanisms are in the neutral position, and
- a System Stop signal processing section which processes to stop the system after outputting the Engage signal.
6 more elements
Dependencies are inferred from the claim text.