摘要:
A method for avoiding error messages due to maintenance work on a vehicle, which are generated by a monitoring unit if one or multiple operating parameters of a monitored vehicle system are outside of a predefined, admissible value range. According The general driving operation is monitored with the aid of a vehicle's own sensor system with respect to a maintenance state and, if a maintenance state is established, the admissible value range be automatically extended or at least one operating parameter is ignored during monitoring.
摘要:
The invention relates to a monitoring device for at least one sub-unit of a hydraulic brake system and to a method for examining a functional capability of at least one sub-unit of a hydraulic brake system, comprising the steps of detecting at least one pressure variable (p) of a pressure (S1) prevailing in the hydraulic brake system, and comparing the detected pressure variable (p) with a predefined comparative value range ([pO]) (S2), wherein, at least if the detected pressure variable (p) deviates from the predefined comparison ([pO]), a pressure change variable (Δρ) relating to a temporal change of the pressure variable (p) is detected (S4) and the detected pressure change variable (Δρ) is compared with a predefined minimum change variable (ΔρΟ) (S5), and the functional capability is determined, taking into account the comparison of the pressure variable (p) with the predefined comparative value range ([pO]) (S3), and, at least if the detected pressure variable (p) deviates from the predefined comparative value range ([pO]), taking into account the comparison of the pressure change variable (Δρ) with the predefined minimum change variable (ΔρΟ) (S6, S7).
摘要:
In a method for the functional testing of a brake system in a vehicle, the brake fluid is initially displaced into a storage chamber. The brake pressure in the brake cycle is then measured and compared to a reference value, wherein in case the pressure is too low, a warning signal is generated.
摘要:
In a method for the functional testing of a brake system in a vehicle, the brake fluid is initially displaced into a storage chamber. The brake pressure in the brake cycle is then measured and compared to a reference value, wherein in case the pressure is too low, a warning signal is generated.
摘要:
The invention relates to a method for detecting air in the brake circuit of a motor vehicle, having a hydraulic brake system with a vacuum brake booster (8). Air inclusions can be detected easily and reliably by a method in which the pressure (p FC ) prevailing in the vacuum chamber (1) of the vacuum brake booster (8) is measured in the actuated and non-actuated states of the brake, a parameter (s, V MC , Δp) characteristic of the braking behavior is determined as a function of the measured pressures, and the characteristic parameter (s, V MC , Δp) is compared to a reference value.