Method for Brake Pressure Distribution Between the Axles of a Vehicle
First Claim
1. In a method for brake pressure distribution between axles of a vehicle having a pressure medium brake, the vehicle including rotational speed sensors assigned to brakeable wheels and providing actual wheel speed signals, wherein the brake pressure distribution between axles is regulated as a function of a difference in wheel rotational speeds between axles or wheel slip values between axles at the axles and an exceeding of a predefined limit value by the difference serves for the brake pressure distribution regulation, the method comprising the acts of:
- determining a brake pressure at the rear axle and determining a decelearation of the vehicle at first and second service braking operations of the vehicle;
interpolating or extrapolating based on a dependency between the brake pressure at the rear axle and the decelaration of the vehicle after the first and second service braking operations to acquire a critical deceleration value at which at least the brake pressure at the rear axle is lower than a predefined brake pressure limiting value.
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Accused Products
Abstract
A method is provided for brake pressure distribution between the axles of a vehicle with a pressure medium brake, which vehicle includes rotational speed sensors, which rotational speed sensors are assigned to wheels which can be braked and which rotational speed sensors serve as actual value sensors. The brake pressure distribution between axles is regulated as a function of a difference in wheel rotational speeds between axles or wheel slip values between axles at the axles, and the exceedance of a predefined limit value by the difference in the wheel rotational speed between axles or the wheel slip values between axles during a braking process serves for the regulation of the brake pressure distribution (differential slip regulation). On the basis of the dependency between at least the brake pressure (p) at the rear axle (HA) and the deceleration (z) of the vehicle after at least two preceding service braking operations, a critical deceleration value (Zabheb) is determined by interpolation or extrapolation, in which at least the brake pressure at the rear axle (HA) is less than a predefined brake pressure limit value.
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Citations
10 Claims
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1. In a method for brake pressure distribution between axles of a vehicle having a pressure medium brake, the vehicle including rotational speed sensors assigned to brakeable wheels and providing actual wheel speed signals, wherein the brake pressure distribution between axles is regulated as a function of a difference in wheel rotational speeds between axles or wheel slip values between axles at the axles and an exceeding of a predefined limit value by the difference serves for the brake pressure distribution regulation, the method comprising the acts of:
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determining a brake pressure at the rear axle and determining a decelearation of the vehicle at first and second service braking operations of the vehicle; interpolating or extrapolating based on a dependency between the brake pressure at the rear axle and the decelaration of the vehicle after the first and second service braking operations to acquire a critical deceleration value at which at least the brake pressure at the rear axle is lower than a predefined brake pressure limiting value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for brake pressure distribution between axles of a vehicle having a pressure medium brake, the method comprising the acts of:
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determining a dependence between at least a brake pressure at a rear axle and a deceleration of the vehicle after at least two preceding service braking operations of the vehicle; acquiring a critical deceleration value at which at least the brake pressure at the rear axle is lower than a predefinable brake pressure limiting value by interpolating or extrapolating from the determined dependence between the brake pressure and the deceleration; and controlling a brake force distribution utilizing the critical decelaration value. - View Dependent Claims (10)
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Specification