Retarding control apparatus which operates on the basis of signals such as a shift lever position signal
First Claim
1. A retarding control apparatus for controlling operation of a retarder, which is connected to an automatic transmission, by operating a retarder actuating device through manipulation of a retarder changeover switch, comprising:
- shift position sensing means for sensing a shift position of a shift lever;
throttle opening detecting means for detecting a throttle opening; and
control means, to which are inputted a shift position signal from said shift position sensing means, a throttle opening signal from said throttle opening detecting means, and a changeover signal from said retarder changeover switch, for outputting an operating signal to the retarder actuating device;
wherein when said control means receives the changeover signal as an input from the retarder changeover switch for operating the retarder and decides that a manual downshift has taken place based upon the shift position signal and throttle opening signal, said control means diminishes the operating signal to the retarder actuating device in such a manner that the retarder produces a braking force that is reduced by a prescribed value.
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Accused Products
Abstract
A retarding control apparatus for controlling operation of a retarder, which is connected to an automatic transmission, by operating a retarder actuating device by manipulation of a retarder changeover switch includes control unit, to which are inputted a shift position signal, a throttle opening signal and a changeover signal from the retarder changeover switch, for outputtig an operating signal to the retarder actuating device. When the control unit receives the changeover signal from the retarder changeover switch for actuating the retarder and decides that a manual downshift has taken place based upon the shift position signal and throttle opening signal, the control unit diminishes the operating signal to the retarder actuating device in such a manner that braking force produced by the retarder is reduced by a prescribed value.
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Citations
3 Claims
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1. A retarding control apparatus for controlling operation of a retarder, which is connected to an automatic transmission, by operating a retarder actuating device through manipulation of a retarder changeover switch, comprising:
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shift position sensing means for sensing a shift position of a shift lever; throttle opening detecting means for detecting a throttle opening; and control means, to which are inputted a shift position signal from said shift position sensing means, a throttle opening signal from said throttle opening detecting means, and a changeover signal from said retarder changeover switch, for outputting an operating signal to the retarder actuating device; wherein when said control means receives the changeover signal as an input from the retarder changeover switch for operating the retarder and decides that a manual downshift has taken place based upon the shift position signal and throttle opening signal, said control means diminishes the operating signal to the retarder actuating device in such a manner that the retarder produces a braking force that is reduced by a prescribed value. - View Dependent Claims (2, 3)
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Specification