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 method for the surveillance of a brake device includes an indirect measurement of temperature of a selected device component, for example a brake drum, of a brake device. A warning signal is furnished, if this measured temperature reaches a maximum permissible value. The invention method is quick by employing the pressure-dependent deformation characterizing curve (11) of the device component heated to the permissible temperature. The device component represented by the brake drum (1) can heat to the maximum permissible temperature and is placed under surveillance during a brake actuation based on deformation and pressure measurement. It is then determined if the actual values reach or exceed the deformation characterizing curve (11). The invention apparatus is used in connection with brake devices in vehicles.
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:
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:
The present invention provides an apparatus for recording the axial force exerted by a coupling device. This apparatus measures the pressure which the axial force exerts on an elastomer-type spring-like element and for this purpose a pressure sensor is mounted at a predetermined transfer shoulder between the elastomer-type spring-like element and the housing or the pull rod of the coupling device. As an alternative, the pressure sensor can be mounted in the elastomer-type spring-like element.
摘要:
The present invention provides a drive engagement control and speed governor system for a vehicle which is capable of adapting a prior art system, known as a DEC/G system, to different types of vehicles. To accomplish this, the invention provides a valve system having fluid pressure delivery as a function of the magnitude of the control signal fed by an electronic control system. According to this invention, the electronic control system transmits a control signal to the valve system which is only sufficient to eliminate the spinning of a drive wheel on such vehicle or to eliminate exceeding of a predetermined maximum speed by an operator of such vehicle.
摘要:
A fastener arrangement for clamping a sensor element to a member whose deformation is to be monitored so as to elimiate signal distortions due to the clamping process and to settling phenomena. The sensor element is formed at its contact point with the member to be monitored by pressing between a die and counter-die as the clamping screws are tightened to provide a form-fit closure of the sensor element with the member to be monitored. The die and counter-die are formed on the adjacent surfaces of the member to be monitored and a torsion member; between which surfaces, the sensor element lies. The screw support member can be arranged to isolate the screw turning moments from the sensor element jointly with the form-fit closure feature.
摘要:
In a disc brake, a brake lining support forms a brake ring from one or more support segments, each segment having a lining pad or pads attached to such segment so that the resulting force from frictional braking passes through the attachment device that non-rotatably supports the segment.
摘要:
A full disk brake including a pair of disks, brake pads, and a closed external housing. In order to facilitate removal of the housing for changing brake pads, the housing is segmented, such as in the form of a pair of semi-cylindrical segments which are secured to the respective peripheries of oppositely facing disks. The housing segments may be removed independently of the brake actuating mechanism, that is, the wheel cylinder, to permit the pads to be changed. The housing segments may also be mounted such that they may be partially unsecured and then swung out of the way of access to the brake pads.