Abstract:
The invention relates to a method for checking the operability of at least one switching unit (1) which comprises a plurality of switches (S1 to S5) and at least one preferably internal control unit (5), which control unit is especially designed to control an electrically actuated consumer in a vehicle, the control unit (5) being connected to one switch (S1 to S5) each and being connectible to an external control device (6) via an interface unit. The operability of the switching unit (1) is checked in an especially advantageous manner by way of at least one internal diagnostic routine (IDR) run in the control unit (5) or an external diagnostic routing (EDR) run in the external control device (6), the diagnostic routines (IDR, EDR) generating at least one test signal (ts, ts1, ts2) which is applied to at least one of the switches (S1 to S5). The input signals (es1, es2) received by the switches (S1 to S5) in the control unit (5) are evaluated for checking the operability, depending on the respective switching states of the switches (S1 to S5).
Abstract:
The invention relates to an evaluation device (A) for a vehicle (F), comprising an input for receiving a sequence of signal values (SIG) which indicate actuation of an operational element (P), e.g. an accelerator pedal, of the vehicle (F). The invention is characterized by a detection component for detecting an output signal (REQ) while taking into consideration differences between the signal values (SIG) withing the sequence, the output signal (REQ) relating to a release of an electronic parking brake (PB) of the vehicle (F) to be carried out. The invention also relates to a vehicle (F), to a method and to a computer program product.
Abstract:
The invention relates to a method for controlling a start-up of an electric vacuum pump for a vacuum system of a vehicle, wherein the start-up can occur according to at least two different start-up modes, i.e., according to a standard mode and according to at least one special mode, wherein in the standard mode the vacuum pump is connected to a supply voltage in a non-clocked manner and in the special mode the vacuum pump is connected to a supply voltage in a dynamically clocked manner.
Abstract:
The invention relates to an assembly for controlling an electric vacuum pump (1) for a vehicle, said assembly being connectable to a supply voltage (2) by means of at least one switch (4, 7, 10, 13) that can be controlled by an electronic control unit. In a start-up phase of the vacuum pump (1), the electronic control unit connects an additional electric resistor (6; 9, 12) between the supply voltage (2) and the vacuum pump (1).
Abstract:
The invention relates to a method for controlling at least one electromechanical parking brake unit (BME) (EPB) of a parking brake system in a vehicle. According to said method, the current vehicle speed (V) is detected by means of a speed sensor system (VS) in the form of a speed measuring signal (vs), and a deceleration measuring signal (as) displaying the current vehicle deceleration is detected by means of at least one acceleration sensor system (BS). In the event of a defective speed measuring signal (vs) or a failure of the speed sensor system (GS), the electromechanical parking brake system (EPB) is operated in an emergency operation mode wherein, at the beginning of a braking process, a dynamic braking function (DBF) is provided by the electromechanical parking brake unit (BME). Advantageously, the current vehicle deceleration (A) is determined from the deceleration measuring signal (as) and compared with a pre-determined minimum deceleration value (MA), and if the determined current vehicle deceleration (A) falls short of the pre-determined minimum deceleration value (MA) in the emergency operation mode, a static brake function (SBF) is provided by the electromechanical parking brake unit (BME).
Abstract:
In the method according to the invention for determining the state of movement of at least one wheel of a vehicle using an electromechanical parking brake system (EPB), the electromechanical parking brake system (EPB) has at least one control unit (SG) and at least one parking brake unit (PME) for braking the at least one wheel, wherein the parking brake unit (PME) has at least one actuator unit (AE) and at least one brake mechanism (BM), and at least one actuator force (AF) is generated by the actuator unit (AE) for actuating the brake mechanism (BM). The brake mechanism (BM) is advantageously actuated with at least one predefined actuator force (AF), a change (DAF) in the at least one actuator force (AF), which change is brought about during activation as a result of the self-boosting effect of the brake mechanism (BM), is detected and the state of movement of the at least one wheel of the vehicle is determined as a function of the absolute value of the change (DAF) in the at least one actuator force (AF).
Abstract:
Procédé et agencement pour le rodage et le calibrage d'un système de frein à main électromécanique avec au moins une unité mécanique de freinage et au moins un appareil de commande, l'actionnement de l'unité mécanique de freinage étant commandé par une routine de commande (SR) prévue dans l'appareil de commande. Le système de frein à main électromécanique est avantageusement rodé par au moins une routine de rodage (EFR) et/ou calibré au moyen d'au moins une routine de calibrage (KRR), la présence d'au moins une condition inhérente à la sécurité (SB) et/ou la présence d'au moins une erreur de système (SF) étant vérifiée avant et/ou pendant la procédure de rodage ou la procédure de calibrage par la routine de rodage (EFR) et/ou la routine de calibrage (KRR) et en fonction de cela, la procédure de rodage ou la procédure de calibrage est poursuivie ou terminée.
Abstract:
Offenbart ist eine Anordnung zur Ansteuerung einer elektrischen Vakuum-Pumpe (1) für ein Fahrzeug, welche mittels wenigstens eines, von einer elektronischen Steuerung steuerbaren Schalters (4, 7, 10, 13) an eine Versorgungsspannung (2) schaltbar ist, wobei die elektronische Steuerung in einer Anlaufphase der Vakuum-Pumpe (1) einen zusätzlichen elektrischen Widerstand (6; 9, 12) zwischen die Versorgungsspannung (2) und die Vakuum-Pumpe (1) schaltet.
Abstract:
Procédé et agencement pour le rodage et le calibrage d'un système de frein à main électromécanique avec au moins une unité mécanique de freinage et au moins un appareil de commande, l'actionnement de l'unité mécanique de freinage étant commandé par une routine de commande (SR) prévue dans l'appareil de commande. Le système de frein à main électromécanique est avantageusement rodé par au moins une routine de rodage (EFR) et/ou calibré au moyen d'au moins une routine de calibrage (KRR), la présence d'au moins une condition inhérente à la sécurité (SB) et/ou la présence d'au moins une erreur de système (SF) étant vérifiée avant et/ou pendant la procédure de rodage ou la procédure de calibrage par la routine de rodage (EFR) et/ou la routine de calibrage (KRR) et en fonction de cela, la procédure de rodage ou la procédure de calibrage est poursuivie ou terminée.
Abstract:
Die Erfindung betrifft eine elektrisch betätigte Feststellbremse für ein Kraftfahrzeug mit einem Bedienelement (6) zum Betätigen der Feststellbremse und einem Aktuator (4a, 4b) zum Ausüben einer Bremskraft. Um die Beanspruchung einer solchen Feststellbremse zu verringern, wird vorgeschlagen, die Feststellbremse mit einer Sensorik (9) zum Erkennen der Anwesenheit eines Fahrers zu versehen und die vom Aktuator (4a, 4b) ausgeübte Bremskraft abhängig davon einzustellen, ob der Fahrer als anwesend oder nicht anwesend erkannt wird.