Automotive driving control system utilizing a stepless transmission

Patent · Tue Dec 09 04:00:00 EST 1986

OSTI ID:7035751

Yokooku, K; Seo, N; Oda, H; Sumida, S; Yatomi, S

This patent describes an automotive driving control system comprising a stepless transmission provided between an engine and driving wheels, a transmission control means for controlling the transmission ratio of the stepless transmission, a throttle valve driving means for driving the throttle valve of the engine and an accelerator position detecting means for detecting the amount of depression of the accelerator pedal. It also includes an actuable engine torque increasing means for increasing engine torque, and control means which receives the signal form the accelerator position detecting means and controls the transmission control means and the throttle valve driving means according to the amount of depression of the accelerator pedal. The control means is adapted to control, when the amount of depression of the accelerator pedal is within a predetermined range between first and second preset values, the throttle valve driving means so that the opening degree of the throttle valve is fixed at a near full open position irrespective of the amount of depression of the accelerator pedal. It is also adapted to control the transmission control means to control the transmission ratio of the stepless transmission to change the engine speed so that the engine output requirement represented by the amount of depression of the accelerator pedal can be obtained with the near full open position of the throttle valve.

• Assignee: Mazda Motor Corp.
• Patent Number(s): US 4627311
• OSTI ID: 7035751
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
ACCELERATION
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION
SPEED REGULATORS
TORQUE
VALVES
VEHICLES
VELOCITY
WHEELS