CONTROL DEVICE OF VEHICLE DRIVE DEVICE

• US 20140236406A1
• Filed: 04/21/2011
• Published: 08/21/2014
• Est. Priority Date: 04/21/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ishida, Ryuta
• Granted Patent: US 9,073,543 B2
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60K 2006/4825 Electric machine connected or connectable to gearbox input shaft
• CPC Class Codes: B60K 23/02 for main transmission clutches
• CPC Class Codes: B60K 6/387 Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 20/40 Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers power-up or power-down of the driveline B60W30/192
• CPC Class Codes: B60W 2540/14 Clutch pedal position
• CPC Class Codes: B60Y 2400/71 Manual or semi-automatic, e.g. automated manual transmissions
• CPC Class Codes: F16D 2048/023 by pedal actuation for pedals per se G01G1/30
• CPC Class Codes: F16D 2048/0266 Actively controlled valves between pressure source and actuation cylinder
• CPC Class Codes: F16D 2500/1025 with threaded transmission
• CPC Class Codes: F16D 2500/10412 Transmission line of a vehicle
• CPC Class Codes: F16D 2500/1066 Hybrid
• CPC Class Codes: F16D 2500/1082 Manual transmission
• CPC Class Codes: F16D 2500/3024 Pressure
• CPC Class Codes: F16D 2500/3067 : Speed of the engine
• CPC Class Codes: F16D 2500/3101 : Detection of a brake actuation by a sensor on the brake brake pedal actuation F16D2500/31426
• CPC Class Codes: F16D 2500/3108 : Vehicle speed
• CPC Class Codes: F16D 2500/31413 : Clutch pedal position
• CPC Class Codes: F16D 2500/31433 : Brake pedal position threshold, e.g. switch
• CPC Class Codes: F16D 2500/3144 : Accelerator pedal position
• CPC Class Codes: F16D 2500/31453 : Accelerator pedal position threshold, e.g. switch
• CPC Class Codes: F16D 2500/7041 : Position
• CPC Class Codes: F16D 2500/70426 : Clutch slip
• CPC Class Codes: F16D 48/066 : Control of fluid pressure, e.g. using an accumulator F16D48/062, F16D48/068 take precedence
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y10S 903/946 : Characterized by control of driveline clutch

Abstract

The present invention provides a control device of a vehicle drive device having an engine that is a drive power source for running, a manual transmission receiving power of the engine via a clutch, an electric motor acting as a drive power source for running disposed on the downstream side of the clutch, a release cylinder releasing the clutch depending on a supply oil pressure, and a master cylinder supplying an oil pressure to the release cylinder in accordance with a depressing operation of a clutch pedal, a shut valve being disposed that is put into a closed state to interrupt a hydraulic path between the release cylinder and the master cylinder, and the shut valve being closed if the clutch is released by the depressing operation of the clutch pedal during driving of the engine.

Claims

1. A control device of a vehicle drive device having an engine that is a drive power source for running, a manual transmission receiving power of the engine via a clutch, an electric motor acting as a drive power source for running disposed on the downstream side of the clutch, a release cylinder releasing the clutch depending on a supply oil pressure, and a master cylinder supplying an oil pressure to the release cylinder in accordance with a depressing operation of a clutch pedal,

a shut valve being disposed that is put into a closed state to interrupt a hydraulic path between the release cylinder and the master cylinder, and

the shut valve being closed if the clutch is released by the depressing operation of the clutch pedal during driving of the engine.

2. The control device of a vehicle drive device of claim 1, wherein

during EV running in which power of the electric motor is used for running with the engine stopped, if the engine is started, the shut valve is opened to allow the clutch to slip.

3. The control device of a vehicle drive device of claim 1, wherein

if the clutch is released by the depressing operation of the clutch pedal during driving of the engine, the shut valve is closed when a vehicle stops, while the shut valve is kept open when the running of the vehicle is continued.

4. The control device of a vehicle drive device of claim 1, wherein

if the shut valve is closed, the engine is stopped, and wherein

if a depressing operation of an accelerator pedal is performed during stop of the engine, the EV running is performed in which power of the electric motor is used for running with the engine stopped.

5. The control device of a vehicle drive device of claim 1, wherein

the master cylinder generates an oil pressure when a piston pressing member interposed between a piston included in the master cylinder and the clutch pedal presses 10 the piston in an axial direction, wherein

the piston pressing member is disposed to be movable relative to the piston from a position of pressing the piston, to a side away from the piston, and wherein

the clutch pedal is biased in a return direction of the clutch pedal.