Automatic transmission system for automobiles having hydraulic and electronic control systems

Patent · Tue Mar 31 00:00:00 EST 1987

OSTI ID:6610118

Nakao, T; Furukawa, T; Mori, M

This patent describes an automatic transmission system in an automobile having an engine, a brake, a throttle valve, a shift lever, a clutch, and transmission gears associated with synchromesh systems. The automatic transmission system comprises: (a) a throttle actuator means for actuating the throttle valve; (b) a clutch actuator means for actuating the clutch; (c) a gear selection actuator means for selectively actuating the synchromesh systems to shift the transmission gear; (d) a fluid pressure control unit means for applying working fluid pressures to the gear selection actuator; and (e) an electronic control unit means for transmitting control signals to the throttle actuator means, the clutch actuator means, and the fluid-pressure control unit means. The signals are sent in response to detected signals indicative of a rotational speed of the engine, an operation of the brake, an operative position of the throttle valve, a selected position of the shift lever, a releasing position of the clutch, and a speed of travel of the automobile.

• Assignee: Aisin Seiki Kabushiki Kaisha, Kariya
• Patent Number(s): US 4653352
• OSTI ID: 6610118
• Resource Relation: Patent File Date: Filed date 19 Dec 1984
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AUTOMOBILES
ENGINES
MECHANICAL TRANSMISSIONS
CONTROL SYSTEMS
HYDRAULIC CONTROL DEVICES
ACTUATORS
BRAKES
FLUID MECHANICS
GEARS
HYDRAULIC FLUIDS
PRESSURE CONTROL
PUMPS
ROTATION
SIGNALS
VALVES
VELOCITY
CONTROL
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUIDS
MACHINE PARTS
MECHANICS
MOTION
VEHICLES
WORKING FLUIDS
330602* - Vehicle Design Factors- Engine-Transmission Matching