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US 8,910,760 B2Granted
Brake system for motorcycle
AssigneeHonda Motor Co., Ltd.
InventorsKazuya Takenouchi, Shuichi Fukaya, Tetsuya Kudo, Fuyuki Hosokawa
Life of this patent
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Abstract
In a brake system for a vehicle, a first control mode and a second control mode are provided by which it is possible to cope with variations in the running environments such as changes between traveling on a public road and traveling on a circuit racecourse and variations in road conditions such as changes between a dry road surface and a wet road surface. A mode change-over switch is disposed between a kill switch on the upper side and a starter switch on the lower side, on the vehicle body center side relative to a right grip. Switching between the first control mode and the second control mode is carried out by use of the mode change-over switch.
Claims16
A brake control system for a vehicle, said system comprising:
- a front wheel brake operating unit;
- a rear wheel brake operating unit;
- an electronic control unit configured to detect amounts of operation on the front wheel and rear wheel brake operating units;
- a front wheel hydraulic modulator;
- a rear wheel hydraulic modulator, wherein the front wheel and rear wheel hydraulic modulators are configured to generate hydraulic pressures based upon detected amounts of operation;
- a front wheel braking device;
- a rear wheel braking device, wherein the front wheel braking device and rear wheel braking device generate braking forces based upon the hydraulic pressures;
- a mode change-over unit configured to change over a plurality of braking force control mode according to a switch operated by a vehicle operator,
- wherein each of the plurality of braking force control modes provided by the mode changer-over unit include a first section wherein the braking force generated on a front wheel of the vehicle and a braking force generated on a rear wheel of the vehicle are both increased when the amount of operation on the front-wheel brake operating unit increases, and a third section in which the braking force generated on the front wheel is further increased and wherein the braking force generated on the rear wheel is decreased when the amount of operation on the front-wheel brake operating unit further increases, and wherein the plurality of control modes include modes which differ from each other in a magnitude of the braking force generated on the rear wheel in the first section,
- wherein the plurality of braking force control modes include a first control mode and a second control mode,
- wherein in a first mode first section in which the operation amount of said front-wheel brake operating unit ranges from zero to a first mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount,
- wherein in a second mode first section in which the operation amount of said front-wheel brake operating unit ranges from zero to a second mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount, and this braking force is set to be smaller than the corresponding braking force generated on said rear wheel in said first mode first section, and
- wherein in said second control mode, like in said first control mode, in a second mode second section in which the operation amount of said front-wheel brake operating unit ranges from said second mode first predetermined value to a second mode second predetermined value greater than said second mode first predetermined value, the braking force generated on said rear wheel is maintained at a maximum value in said second mode first section irrespectively of an increase in said operation amount, and this braking force is controlled to be smaller than the corresponding braking force generated on said rear wheel in said first mode second section.
10 more elements
A brake control system for a vehicle, said system comprising:
- a front wheel brake operating means for receiving brake actuation input;
- a rear wheel brake operating means for receiving brake actuation input;
- an electronic control for detecting amounts of operation on the front wheel and rear wheel brake operating means;
- a front wheel hydraulic modulator means for modulating hydraulic pressure;
- a rear wheel hydraulic modulator means for modulating hydraulic pressure, wherein the front wheel and rear wheel hydraulic means are configured to generate hydraulic pressures based upon detected amounts of operation;
- a front wheel braking means for front braking;
- a rear wheel braking means for rear braking, wherein the front wheel braking means and rear wheel braking means generate braking forces based upon the hydraulic pressures;
- a mode change-over means for changing over a plurality of braking force control mode according to a switch operated by a vehicle operator,
- wherein each of the plurality of braking force control modes provided by the mode changer-over means include a first section wherein the braking force generated on a front wheel of the vehicle and a braking force generated on a rear wheel of the vehicle are both increased when the amount of operation on the front-wheel brake operating means increases, and a third section in which the braking force generated on the front wheel is further increased and wherein the braking force generated on the rear wheel is decreased when the amount of operation on the front-wheel brake operating means further increases, and wherein the plurality of control modes include modes which differ from each other in a magnitude of the braking force generated on the rear wheel in the first section,
- wherein the plurality of braking force control modes include a first control mode and a second control mode,
- wherein in a first mode first section in which the operation amount of said front-wheel brake operating means ranges from zero to a first mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount,
- wherein in a second mode first section in which the operation amount of said front-wheel brake operating means ranges from zero to a second mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount, and this braking force is set to be smaller than the corresponding braking force generated on said rear wheel in said first mode first section, and
- wherein in said second control mode, like in said first control mode, in a second mode second section in which the operation amount of said front-wheel brake operating means ranges from said second mode first predetermined value to a second mode second predetermined value greater than said second mode first predetermined value, the braking force generated on said rear wheel is maintained at a maximum value in said second mode first section irrespectively of an increase in said operation amount, and this braking force is controlled to be smaller than the corresponding braking force generated on said rear wheel in said first mode second section.
10 more elements
A method of providing brake control for a vehicle, said method comprising:
- providing a plurality of preprogrammed control modes in a memory;
- sensing an operation of a front-wheel brake operating unit;
- increasing a braking force generated on a front wheel and a rear wheel when an amount of operation of the front-wheel brake operating unit increases;
- further increasing a braking force generated on the front wheel and decreasing the braking force generated on the rear wheel when the amount of operation of the front-wheel brake operating further increases, and
- selecting different control modes of a plurality of control modes based upon a switch operated by a vehicle operator,
- wherein each of the plurality of control modes includes a first section, second section and third section,
- wherein in a first mode first section in which the operation amount of said front-wheel brake operating unit ranges from zero to a first mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount,
- wherein in a second mode first section in which the operation amount of said front-wheel brake operating unit ranges from zero to a second mode first predetermined value, the braking force generated on said rear wheel gradually increases correspondingly to an increase in said operation amount, and this braking force is set to be smaller than the corresponding braking force generated on said rear wheel in said first mode first section, and
- wherein a second mode second section in which the operation amount of said front-wheel brake operating unit ranges from said second mode first predetermined value to a second mode second predetermined value greater than said second mode first predetermined value, the braking force generated on said rear wheel is maintained at a maximum value in said second mode first section irrespectively of an increase in said operation amount, and this braking force is controlled to be smaller than the corresponding braking force generated on said rear wheel in said first mode second section.
6 more elements
Dependencies are inferred from the claim text.