System for actuating a brake system
First Claim
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1. System for actuating the brakes of at least one wheel of a vehicle, said system comprising detection means for detecting at least one variable representing wheel motion, detection means for detecting vehicle state variables comprising steering angle δ
- and at least one of vehicle longitudinal velocity v1, transverse acceleration ay and yaw velocity ω
, calculation means for calculating a driving dynamics variable (Δ
ω
, fzstabist) based on said vehicle state variables, which driving dynamics variable represents the driving dynamics of the vehicle,generation means for generating an instability value ISS based on at least one of said variables representing wheel motion and said driving dynamics variable, andactuation means for changing the brake pressure as a function of the instability value.
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Abstract
An instability value for at least one wheel is derived from the detected variables such as rotational velocity of the wheels, and as a function of this instability value, the brake systems are actuated to change the brake pressure, such that in addition, the present invention can calculate a variable which modifies or represents the driving dynamics of the vehicle and wherein the instability value can be modified as a function of the calculated driving dynamics variable.
27 Citations
14 Claims
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1. System for actuating the brakes of at least one wheel of a vehicle, said system comprising detection means for detecting at least one variable representing wheel motion, detection means for detecting vehicle state variables comprising steering angle δ
- and at least one of vehicle longitudinal velocity v1, transverse acceleration ay and yaw velocity ω
, calculation means for calculating a driving dynamics variable (Δ
ω
, fzstabist) based on said vehicle state variables, which driving dynamics variable represents the driving dynamics of the vehicle,generation means for generating an instability value ISS based on at least one of said variables representing wheel motion and said driving dynamics variable, and actuation means for changing the brake pressure as a function of the instability value.
- and at least one of vehicle longitudinal velocity v1, transverse acceleration ay and yaw velocity ω
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2. Method for actuating the brakes of at least one wheel of a vehicle, said method comprising
detecting at least one variable representing wheel motion, detecting vehicle state variables comprising steering angle δ - and at least one of vehicle longitudinal velocity v1, transverse acceleration ay, and yaw velocity ω
,calculating a driving dynamics variable (Δ
ω
, fzstabist) based on said vehicle state variables, which driving dynamics variable represents the driving dynamics of the vehicle,generating an instability value ISS based on at least one of said variables representing wheel motion and said driving dynamics variable, and changing the brake pressure as a function of the instability value. - View Dependent Claims (3)
- and at least one of vehicle longitudinal velocity v1, transverse acceleration ay, and yaw velocity ω
-
4. System for actuating the brake systems (106ij)of at least one wheel of a vehicle with
detection means (103ij) for detecting at least one variable (Nij) representing the motions of the wheel; -
generation means (1024) for generating an instability value (ISS) for at least one wheel, derived from the detected variables; and actuation means (1025) for changing the brake pressure as a function of the generated instability value (ISS); and determination means (104, 105,
101) for determining a variable (ay/ω
, δ
, Δ
ω
, fzstabist) which represents or modifies the driving dynamics of the vehicle, whereinthe generation means (1024) are designed in such a way that the instability value (ISS) can be modified as a function of the determined variable (ay/(ω
, δ
, Δ
ω
, fzstabiist). - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification