摘要:
A method is provided for the generation of wheel acceleration control signals and wheel deceleration control signals for an anti-lock system for wheels of a vehicle. The vehicle is furnished with a digital electronic anti-lock system with at least one microprocessor. The microprocessor calculates a wheel comparison speed (v.sub.diff). The wheel comparison speed is obtained by a filtering of the actual wheel speed (v.sub.wheel), and follows in time to the actual wheel speed (v.sub.wheel). A deceleration signal (-b) or an acceleration signal (+b), respectively, is then furnished when the absolute value of the difference (.DELTA.) between the wheel comparison speed (v.sub.diff) and the actual wheel speed (v.sub.wheel) surpasses a preset value as based on the sign of the difference (.DELTA.).
摘要:
A brake system with at least one brake circuit comprises a mechanical brake-pressure control device and an electrical brake-pressure control device. The brake system is constructed without additional expenditure and by use of a mechanical brake-pressure control device and by an electrical control valve device. The system is constructed such that the brake-pressure modulator (8) of the electrical brake-pressure control device (6, 8, 11, 19) can also be controlled by pressure. The brake-pressure modulator (8) meters the brake pressure, both on the strength of the supplied electrical signal as well as according to the value level of the fed-in redundant brake pressure. The control electronics (11, 19) of the electrical brake-pressure control device (6, 8, 11, 19) is constructed such that it sets the strength of the electrical signal to a value required for covering and for meeting the respective brake-pressure demand request. The invention structure can be employed preferably in connection with road vehicles and motor vehicles.
摘要:
A method for the braking of a vehicle train with pressure-actuated brakes and arrangements for performing this method are disclosed. The prior art shows that, because of a different rapid build-up of a braking pressure in the various rigid vehicles of a vehicle train, there occurs an overrun shock during adjustment transition shifting braking phases. According to one embodiment of the invention, there is furnished a lead and predominance by a predetermined value in the co-braking signal furnished from the one rigid vehicle to the second rigid vehicle of a vehicle train. According to a further embodiment, a predominance by a predetermined amount in the braking pressure in the second vehicle versus the co-braking signal is furnished, if during the preceding brake application actuation the overrun shock has surpassed a preset tolerance width. The invention can be applied in particular for vehicle trains made up of a motor vehicle and one or several trailers or semitrailers.
摘要:
A brake actuating device is furnished with a device for slack readjustment of a brake, in particular of a vehicle brake. Defects in the area of the slack readjustment device can result in an erroneous and defective brake behavior. The invention device furnishes a continuous control of the brake release gap and of the brake lining wear. The motion of the brake mechanism is used for the generation of a first measurement distance (s). The motion of the slack readjustment device (5, 7) is used for the generation of a second measurement distance (n). A regulating distance (q), formed by a superpositioning of the measurement distances (s) and (n), can be scanned and recorded with a distance sensor (17) of a signal generator (18). The signal, corresponding to the regulating distance (q), can be transformed into signals corresponding to the measurement distances (s) and (n) in an evaluation device. The evaluation device serves for a continuous surveillance and monitoring of the brake release gap and of the brake lining wear at a vehicle or in a diagnostic center, where the evaluation device can be connected to the vehicle.
摘要:
An overload warning system for a trailer brake cylinder of a trailer brake system having a nominal deceleration rate. It has been found that previous temperature sensing overdue warning systems have a disadvantage that undue delay occurs and that no warning signal is initiated until after damage to the trailer brakes occurs. The present invention proposes that the tractor brake system and the trailer brake system compare their received operating control signals from which they form a ratio factor and then produce a warning signal when the ratio factor changes beyond a predetermined critical change velocity. The present invention employs the rapid drop in braking force caused by a brake overload and uses the rapid drop and increase brake demand for readjusting the brake deceleration. The present invention is used for uniquely recognizing the "Fading" effect of the trailer brake system.
摘要:
The present invention provides a method of and an apparatus for regulating an electrically regulated brake circuit of a multi-circuit brake mechanism with pressure medium activated brakes. To decrease the expense of such multi-circuit brake mechanism, the invention transforms the pressure, modulated by the brake actuating mechanism, to an electrical signal and regulates or co-regulates the electrically regulated brake circuit (II) by this electrical signal.
摘要:
A method for the approximate determination of the average temperature of a device component of a brake device. The average temperature is determined by the deformation of the device component at the start of a brake actuation and at a point in time t.sub.1 following said start as well as by a temperature-dependent change of the elasticity module of the material of the device component. The method is particularly useful for surveillance of brake devices of vehicles with respect to overloading and fading.
摘要:
A strain relief device for an electrical cable disposed in a cable lead-through system for a housing containing an electrical component. The housing includes a cup-shaped housing portion and a closure portion. The strain relief includes two opposingly moving elements for clamping the cable. The two elements of the strain relief are braced against an inside wall of the cup-shaped housing portion. The closure portion is formed by one of the two elements of the strain relief.
摘要:
An automatic activation apparatus for a differential pawl which is independent of intervention by an operator of a vehicle, the invention controls the energy supply to the actuator by means of a control logic with two signal inputs. The control logic is fed a wheel slip signal directly at one signal input, and via a break-delay timing element at its other signal input. The control logic is thereby designed so that, by the excitation of both signal inputs, it switches into a standby position and then into its active position only upon the excitation of its signal input connected with the timing element.
摘要:
The present invention teaches a brake cylinder which is formed by a cylindrical housing and a cylinder base. The cylindrical housing and cylinder base are joined together by a bayonet connection and form a pressure chamber. The bayonet connection is designed pressure-tight, and it is located on the pressurized-side of a circular sealing element which seals off the cylinder base from the cylinder housing. The bayonet connection is thereby protected from the entry of detrimental environmental influences, especially dirt and moisture, and it can still be easily disassembled at all times.