Accelerator control for a vehicular propulsion system having a c

Details Accelerator control for a vehicular propulsion system having a c Accelerator control for a vehicular propulsion system having a c

1984-03-30

1986-09-23

Dorner, Kenneth J.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74865, 74877, 3644241, B60K 4116

Patent

active

046128271

ABSTRACT:
A control system and method for a vehicular propulsion system which includes a continuously variable ratio transmission (CVT) and an engine having a relatively steep torque-speed characteristic. Attenuation of the accelerator pedal output--which directly controls the transmission ratio--when the engine is operating in the highly sensitive "critical speed range" spanning the steep portion of its torque-speed characteristic, serves to smooth vehicle responsiveness and driveability, and improve control.

REFERENCES:
patent: 3893344 (1975-07-01), Dantlgraber et al.
patent: 4253347 (1981-03-01), Mizuno et al.
patent: 4261229 (1981-04-01), Mizuno et al.
patent: 4281567 (1981-08-01), Maurer
patent: 4458560 (1984-07-01), Frank et al.
patent: 4459878 (1984-07-01), Frank

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