Slip control system for a vehicle
First Claim
1. A slip control system of a vehicle having a load adjusting means for adjusting a load of an engine and a slip control means for reducing torque to be generated by the engine by controlling the load adjusting means prior to operation of an accelerator when a driven wheel slips to a large extent, wherein:
- a control-unreactive region setting means for setting a control-unreactive region is provided so as to allow the load adjusting means to ensure a given amount of operation of the accelerator nearby a maximum opening angle of the accelerator prior to slip control by the slip control means;
an engine control means is provided for controlling the engine on the basis of a predetermined condition so as to change the torque to be generated by the engine without control of the load adjusting means; and
a correction means for correcting a control value of the engine control means in a direction of reducing the torque to be generated by the engine in the control-unreactive region.
1 Assignment
0 Petitions
Accused Products
Abstract
When the driven wheel of the vehicle slips against the road surface to a large extent, such a large slip of the driven wheel can be converged by reducing torque to be applied to the driven wheel by slip control, i.e., by control the throttle valve for adjusting a load of the engine in a direction of forcibly closing the throttle valve prior to operation of the accelerator. In a region of the opening angle of the accelerator nearby its full open region, for example, accounting for 75% or more, a control-unreactive region is provided which is unreactive to slip control, thereby preventing the throttle valve from lowering a given opening angle, for example, 25%. This arrangement can retain the opening angle of the accelerator nearby its full open position even if slip control cannot work normally, thereby ensuring an open state of the throttle valve and allowing the vehicle to run at least to a tune-up factory nearby.
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Citations
37 Claims
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1. A slip control system of a vehicle having a load adjusting means for adjusting a load of an engine and a slip control means for reducing torque to be generated by the engine by controlling the load adjusting means prior to operation of an accelerator when a driven wheel slips to a large extent, wherein:
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a control-unreactive region setting means for setting a control-unreactive region is provided so as to allow the load adjusting means to ensure a given amount of operation of the accelerator nearby a maximum opening angle of the accelerator prior to slip control by the slip control means; an engine control means is provided for controlling the engine on the basis of a predetermined condition so as to change the torque to be generated by the engine without control of the load adjusting means; and a correction means for correcting a control value of the engine control means in a direction of reducing the torque to be generated by the engine in the control-unreactive region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification