摘要:
In a vehicle train comprising a motor vehicle and a trailer, a process for monitoring a trailer brake for overload comprises producing an energy call-up signal during a braking action, supplying energy to a motor vehicle brake in the motor vehicle, the amount of energy being supplied to the motor vehicle being determined, at least in part, by the value of the energy call-up signal, producing a trailer energy signal, the value of the trailer energy signal being determined, at least in part, by the value of the energy call-up signal, and supplying trailer energy to a trailer brake in the trailer, the amount of trailer energy supplied to the trailer brake being determined, at least in part, by the value of the trailer energy signal. The process further comprises monitoring the coupling force appearing at a coupling between the motor vehicle and the trailer, and adjusting the coupling force based on the trailer energy signal. The process further comprises detecting that overload of the trailer brake has occurred when the value of the trailer energy signal rises in a more than transitory manner at a given call-up signal. In a preferred embodiment, overload of the trailer brake is detected only when the rise in the trailer energy signal exceeds a predetermined value.
摘要:
A process and apparatus for the braking with optimized stability of a vehicle train is disclosed. The vehicle train comprises at least two individual vehicles, one of the individual vehicles supporting the individual vehicle. The process comprises supplying energy to the brakes of the vehicles, thereby actuating the brakes and producing an actual force between the vehicles, and measuring the actual-value horizontal and vertical components (F.sub.hact, F.sub.vact) of the actual force (F.sub.act) acting between the supporting and supported vehicle. A desired-value horizontal force component (F.sub.hdes) of the force is determined by multiplying the actual-value vertical component (F.sub.vact) by the ratio of the actual-value train deceleration (b) to the earth's acceleration (g). The desired-value horizontal force component (F.sub.hdes) is then compared with the actual-value force horizontal component (F.sub.hact). The energy supplied to the brakes is adjusted so that F.sub.hact becomes substantially equal to F.sub.hdes resulting in braking of the vehicle train with optimal stability.
摘要:
In a vehicle train comprising a motor vehicle and a trailer, a process for monitoring a motor vehicle trailer brake for overload comprises producing an energy call-up signal during a braking action, supplying energy to the motor vehicle brake in the motor vehicle, the amount of energy being supplied to the motor vehicle being determined, at least in part, by the value of the energy call-up signal, producing a trailer energy signal, the value of the trailer energy signal being determined, at least in part, by the value of the energy call-up signal, and supplying trailer energy to a trailer brake in the trailer, the amount of trailer energy supplied to the trailer brake being determined, at least in part, by the value of the trailer energy signal. The process further comprises monitoring the coupling force appearing at a coupling between the motor vehicle and the trailer, and adjusting the coupling force based on the trailer energy signal. The process further comprises detecting that overload of the motor vehicle brake has occurred when the value of the trailer energy signal decreases in a more than transitory manner at a given call-up signal. In a preferred embodiment, overload of the motor vehicle brake is detected only when the decrease in the trailer energy signal exceeds a predetermined value.
摘要:
In a method for checking vehicle tires, wheel sensor signals of at least one wheel of the vehicle are recorded over a time period, and a comparative value is determined to indicate a travel distance of the wheel. A reference travel distance covered by the vehicle in the time period is determined independently of the wheel sensor signals, and an individual ratio value of the wheel is formed from the wheel travel distance and the reference travel distance. The behavior of the ratio value over time is determined, and a determination is made concerning changes to the tire of the wheel.
摘要:
A rear area monitoring device for a vehicle includes one or more distance sensors configured, to determine the distance of the rear of the vehicle from an obstacle, and at least one electronic control device configured to evaluate the data collected by the distance sensor and to determine a distance signal that indicates the current distance of the rear of the vehicle from the obstacle. The electronic control device includes at least one input connection for a position sensor configured to detect the position of at least one adjustable vehicle component that, in certain positions projects beyond the rear of the vehicle. The electronic control device is configured to determine the distance sign depending upon the signal of the position sensor.
摘要:
The invention relates to a method for controlling a compressed-air-controlled brake system of a utility vehicle (3, 4), wherein a monitoring sensor (S) monitors whether the means for securing or positioning a vehicle part of the utility vehicle (3, 4), a cargo (6) of the utility vehicle (3, 4) or a cargo carrier (7, 10) which accommodates a cargo (6) of the utility vehicle (3, 4), which are provided in order to ensure a safe driving state of the utility vehicle (3, 4), are present and wherein the brakes (B) of the utility vehicle (3, 4) are actuated automatically if the monitoring sensor (S) detects that the means for securing or positioning the vehicle part, the cargo (6) or the cargo carrier (7, 10), which are provided in order to ensure a safe driving state of the utility vehicle (3, 4), are not present. The invention also relates to a system composed of a brake system control device for such a brake system and a monitoring sensor as well as a brake system control device for this purpose. C.)
摘要:
A system and method for braking a drawbar trailer having a front axle and one or more further axles, each axle having at least two wheels, includes first sensors which sense the axle load of at least one axle, and second sensors which sense the rotational wheel speeds. Brakes actuatable with a pneumatic brake pressure brake the trailer. Brake signals generated in the towing vehicle are transmitted between the towing vehicle and the trailer. A control unit receives these brake signals and the sensor signals, and determines the axle load. The operating pressure is adapted to the brake pressure which is fed to the brakes. The control unit detects the brake pressure value as a function of (i) the specific axle loads of the front axle and the other axles and (ii) the received brake signals, and actuates the brakes such that the detected brake pressure is made available.
摘要:
A brake-control module for a first trailer of a tractor-trailer combination reduces braking response time for the second trailer and subsequent trailers in the vehicle train. The brake-control module includes a tractor interface. The tractor interface includes a tractor CAN interface for connecting to a tractor CAN connector of a tractor, a tractor voltage-supply interface for connecting to a tractor voltage-supply connector of the tractor, and a tractor warning-light interface for connecting to a tractor warning-light connector of the tractor. The brake-control module further includes a second-trailer interface for connection of a second trailer that is coupled to the first trailer. The second-trailer interface includes a second-trailer CAN interface for connecting to a second-trailer CAN connector of the second trailer, a second-trailer voltage-supply interface for connecting to a voltage connector of the second trailer, and a second-trailer warning-light interface for connecting to a second-trailer warning-light connector of the second trailer.
摘要:
A tractor-trailer combination includes a semitrailer tractor having a front axle and at least one drive axle having a predefined nominal axle load, a semitrailer having a first axle and at least one second axle, and an axle load adjusting device, which has an axle center height drive for the first axle enabling the axle load acting on the drive axle to be changed by adjusting a center height of the first axle, that can automatically switch into a starting assistance mode in which the second-axle axle load is increased to a starting-assistance axle load that is always below a predefined maximum axle load. An axle center height controller is adapted to automatically detect actuation of an off-road starting sensing device, and increase the second-axle axle load to an off-road starting axle load that is greater than the maximum axle load if the off-road starting sensing device is actuated.
摘要:
A tractor-trailer combination includes a semitrailer tractor having a front axle and at least one drive axle having a predefined nominal axle load, a semitrailer having a first axle and at least one second axle, and an axle load adjusting device, which has an axle center height drive for the first axle enabling the axle load acting on the drive axle to be changed by adjusting a center height of the first axle, that can automatically switch into a starting assistance mode in which the second-axle axle load is increased to a starting-assistance axle load that is always below a predefined maximum axle load. An axle center height controller is adapted to automatically detect actuation of an off-road starting sensing device, and increase the second-axle axle load to an off-road starting axle load that is greater than the maximum axle load if the off-road starting sensing device is actuated.