Control system for electric vehicle

Details Control system for electric vehicle Control system for electric vehicle

1997-01-10

1998-05-26

Ip, Paul

Electricity: motive power systems

Braking

Plural, diverse or diversely controlled braking means

318139, 318587, 36442408, 180 651, 180167, 74866, H02P 541, B60L 300

Patent

active

057571538

ABSTRACT:
In an electric vehicle including a transmission provided between a motor and driven wheels, if a shift change detecting means has detected the shift change from a "D" range or an "R" range to an "N" range or a "P" range when a stoppage detecting means has detected that the vehicle is in its substantially stopped state, a torque command value gradually-decreasing means gradually decreases the torque command value for the motor toward zero. This causes the face pressure of meshed portions of gears within the transmission to be moderately decreased, thereby preventing the generation of a striking sound due to a repulsion of the gear.

REFERENCES:
patent: 4691285 (1987-09-01), Takeda
patent: 4744031 (1988-05-01), Takeda et al.
patent: 5367455 (1994-11-01), Kitagawa et al.
patent: 5696680 (1997-12-01), Ichioka et al.

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