Method of Modulating Brake Pressures on Motorcycles

• US 20080238188A1
• Filed: 08/02/2006
• Published: 10/02/2008
• Est. Priority Date: 08/23/2005
• Status: Abandoned Application

• Current Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Original Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Inventors: Gronau, Ralph, Burkhard, Dieter
• Application Number:
  US12/064,035
• Publication Number:
  US 20080238188A1
• Time in Patent Office: Days
• US Class Current: 303/113.2
• CPC Class Codes: B60T 8/261 specially adapted for use in motorcycles
• CPC Class Codes: B60T 8/3225 Systems specially adapted for single-track vehicles, e.g. motorcycles B60T8/3235 takes precedence
• CPC Class Codes: B60T 8/4072 Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking

Abstract

Disclosed is a method and brake system for modulating brake pressures in a motorcycle brake system with anti-lock function and integral braking function. Inlet and outlet valves (9, 10) are provided in each case for brake slip control in a front-wheel brake circuit (1) and a rear-wheel brake circuit (2). Active pressure buildup in a brake circuit other than the brake circuit actuated by the motorcyclist is performed by the integral braking function using a pump (15) and at least one separating and change-over valve (11, 18) in at least one of the brake circuits (1, 2). In the brake circuit (1, 2) being initiated by the integral function, brake pressure modulation is controlled or regulated using the change-over valve (18) and/or the separating valve (11) during brake slip control.

Claims

1-10. -10. (canceled)

11. A motorcycle brake system operable by a motorcyclist,

with an anti-lock function and an integral braking function,

with a front-wheel brake circuit (1) and a rear-wheel brake circuit (2), each brake circuit being equipped with an inlet and an outlet valve (9, 10) for brake slip control,

with a pump for active pressure buildup in a brake circuit currently not actuated by the motorcyclist, the pump being activated by the integral braking function, and

with at least one separating and change-over valve (11, 18) in at least one of the brake circuits (1, 2),

wherein in the brake circuit (1, 2) for which the pump has been activated by the integral function, brake pressure modulation is controlled or regulated in a brake slip control operation using at least one of the following two valves:

the change-over valve (18), the separating valve (11).

12. The brake system as claimed in claim 11,

wherein the brake pressure in the brake circuit (1, 2), for which the pump has been activated by the integral function, is modulated based on wheel slip of the wheel in that brake circuit (FR, RR).

13. The brake system as claimed in claim 11,

wherein during brake slip control, the change-over valve (18) is closed to maintain the brake pressure in the brake circuit (1, 2), for which the pump has been activated by the integral function.

14. The brake system as claimed in claim 13,

Wherein, during brake slip control, the separating valve (11) is at least partly opened for reducing the brake pressure in the brake circuit (1, 2), for which the pump has been activated by the integral function.

15. The brake system as claimed in claim 14,

wherein the separating valve (11) is closed and the change-over valve (18) is opened for buildup of brake pressure after the brake pressure has been maintained or reduced.

16. The brake system as claimed in claim 15,

wherein, upon detection of a critical braking situation, the brake pressure modulation through the operation of the change-over valve or the separating valve (11, 18) is discontinued and brake pressure modulation by way of the inlet and outlet valves (9, 10) is performed.

17. The brake system as claimed in claim 16,

wherein a critical braking situation is detected by observing behavior of the motorcyclist.

18. The brake system as claimed in claim 16,

wherein a critical braking situation is detected if the slip of one wheel is in excess of a threshold value which is predetermined within the limits of the anti-lock function.