| 摘要 |
Provided is a control method for automatically raising rotational speed, in which two sensors are respectively mounted to power input side and power output side of a torque converter for detecting the rotational speeds of an impellor wheel and a runner wheel of the torque converter. The two sensors are connected to an on-automobile computer, which comprises a control device that raises the rotational speed of the engine or motor of the automobile, when a gearshift lever of the automobile is switched from a neutral position into a drive position under the condition that the automobile is in the neutral position and is moved by inertia thereof at a speed higher than 35 KM/H, order to cause an increase of the rotational speed of the impellor wheel to have the rotational speed of the impellor wheel slightly lower than the runner wheel with a rotational speed difference less than 300 rpm.
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