Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-09-17
1990-01-16
Scherbel, David A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74856, B60K 4114
Patent
active
048935263
ABSTRACT:
A continuous variable transmission (CVT) for a vehicle provided with an internal combustion engine. The engine is provided with an actuator which is mechanically disconnected from an accelerator pedal and is used for electrically operating a throttle valve so that a desired torque is obtained. A target value of a speed of the input shaft of the CVT is calculated in accordance with a target engine horsepower or driving torque. A feedback system for the CVT is provided for obtaining the target input shaft speed, and a sensor is provided for detecting an intake air amount or intake pressure. A target value of the engine torque is calculated from the target horsepower or driving torque and actual speed of the input shaft or actual speed ratio. A feedback system responsive to the intake air amount or intake pressure is provided for providing a feedback signal for obtaining the target torque.
REFERENCES:
patent: 4458560 (1984-07-01), Aishin
patent: 4458561 (1984-07-01), Andrew A. Frank
patent: 4515040 (1985-05-01), Takeuchi et al.
patent: 4546673 (1985-10-01), Shigematsu et al.
patent: 4715258 (1987-12-01), Shigematsu et al.
patent: 4718306 (1988-01-01), Shigematsu et al.
patent: 4743223 (1988-05-01), Tokoro et al.
ASME, 80-C2/DET-59 "The Development of a Perbury Traction Transmission for Motor Car Applications".
Scherbel David A.
Smith Creighton
Toyota Jidosha & Kabushiki Kaisha
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