Slip detecting device for motor vehicle mounted with automatic transmission
First Claim
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1. A slip detecting device for a motor vehicle mounted with an automatic transmission, said motor vehicle having a driving system, comprising:
- a rotational speed detecting means for detecting a rotational speed of a specific part in said driving system;
a shift detecting means for detecting a shift effected in said automatic transmission;
a speed variation state index computing means for computing an index of state of speed variation caused by the shift, based on said rotational speed of the specific part in the driving system detected by said rotational speed detecting means; and
a slip detection means for detecting occurrence of driving wheel slip according to the index of state of speed variation.
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Abstract
Disclosed is a slip detecting device for a motor vehicle mounted with an automatic transmission. The slip detecting device is provided with a device for detecting a rotational speed of the specific part in a driving system, whereby occurrence of a driving wheel slip is detected based on the speed variation state in the rotational speed such as the gradient of variation in the output shaft rotational speed when shifting. Therefore, a driving wheel slip can be detected at a low cost, regardless of the accelerator pressed condition.
23 Citations
12 Claims
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1. A slip detecting device for a motor vehicle mounted with an automatic transmission, said motor vehicle having a driving system, comprising:
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a rotational speed detecting means for detecting a rotational speed of a specific part in said driving system; a shift detecting means for detecting a shift effected in said automatic transmission; a speed variation state index computing means for computing an index of state of speed variation caused by the shift, based on said rotational speed of the specific part in the driving system detected by said rotational speed detecting means; and a slip detection means for detecting occurrence of driving wheel slip according to the index of state of speed variation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification