摘要:
An internal combustion engine with electronic components controlled from a central unit, where electrical leads as conductive connection for power transmission and data transmission between the electronic components of the internal combustion engine are avoided completely wherever possible. The electronic components to be controlled from a central unit are arranged, together with the central unit, on the engine in a space that is fully enclosed by a metal housing part, power is supplied to at least some of the electronic components by high frequency electromagnetic waves generated and radiated without cables by a high frequency source arranged in the space enclosed by the metal housing part and the components to be supplied with power by the radiated electromagnetic waves from the high frequency source each have at least one receiving device for receiving the electromagnetic waves.
摘要:
In a device for the transmission and evaluation of measurement signals for the tire pressure of tubless tires mounted rims in single and twin wheels of motor vehicles which comprises a pressure sensor (6) arranged in the rim wall, which pressure sensor (6) is electrically connected with a signal transmitter coil (8) arranged at the rim (3), as well as a signal pick-up coil (20) of a high-frequency resonant circuit signal evaluating arrangement connected with the motor vehicle in the area of the axle so as to be stationary, it is provided for the purpose of enabling signal detection also when stationary and for problem-free application to twin tires, that a first repeater coil (15), which is electrically connected with a second repeater coil (17), is arranged in the area of the signal transmitter coil (8) at the hub (12) carrying the rim (3), which hub (12) is connected with the latter so as to be fixed with respect to rotation relative to it, wherein the second repeater coil (17) is constructed as a toroidal coil whose coil axis (18) coincides with the hub axis (11), wherein the stationary signal pick-up coil (20) is arranged in the magnetic field area of the second repeater coil (17).
摘要:
A device for the transmission of measuring signals for the tire pressure of twin wheels of motor vehicles comprises for the purpose of enabling a simple exchange of the individual wheels in the twin wheel at least two signal transmitters which are arranged at each individual wheel in the area of the free outer rim edge in such a way that the first signal transmitter of the first wheel is electrically connected with a sensor of the first wheel and with the signal transmitter of the second wheel, and the signal transmitter of the first wheel is electrically connected with a sensor of the second wheel and with the second signal transmitter of the second wheel by means of coupling devices which are arranged on the rims. A stationary signal receiver is provided in the area of the free outer rim edge of the respective inner individual wheel at a distance from it.
摘要:
A magnetometer with a time coding is proposed, which serves to measure magnetic fields in the motor vehicle and in particular to measure the direction of the earth field and to determine the driving direction. The magnetometer includes at least one sensor having a horizontally disposed, magnetizable rod-shaped core and a winding disposed on the core. The winding carries an alternating current for generating an auxiliary alternating field, in order to magnetize the core in alternation up to and into saturation. In order to measure the magnetic field detected by the sensor and to generate the auxiliary alternating current, a controlled alternating current source (18) is connected on the one hand to one and the same winding (19), and on the other hand a measurement voltage that can be picked up at this winding (19) is connected to an evaluation circuit (21, 25, 12, 13). The degree of deviation between the positive and negative half-waves of the measurement voltage represents a measure for the magnitude of the magnetic field measured. The magnetometer is intended for use as part of an electronic compass, preferably for navigational purposes in vehicles.
摘要:
A method is described for determining the wheel speed during braking of a vehicle having in addition to at least one wheel with speed sensor at least one further wheel without speed sensor and means for determining the braking pressure. For this purpose, the braking operation is subdivided into several time intervals during which the relative value from the braking energy and the kinetic energy of the vehicle are obtained, and the contribution of the wheels without speed sensors to the braking energy is defined during a first time interval. Furthermore, the ratio of the relative value in this time interval to the relative values in further time intervals is formed, and the mean value for the wheel speed of all wheels without speed sensors is ascertained in the further time intervals from the ratio of the relative values.
摘要:
A sensor for determining the pressure and temperature of the air in a vehicle tire and comprising temperature sensor elements decoupled from the temperature of the wheel rim and coupled to the temperature of the tire air. The temperature sensor elements are arranged on an insulating foil which is stretched over one of the openings of a cover cap which is fastened at the sensor housing so as to be thermally insulated. The temperature sensor elements are connected with connecting leads of the electronic circuit of the sensor via conductor paths of the insulating foil.
摘要:
A motor vehicle control module is described comprising a control unit with a carrier body, a circuit arrangement applied on the carrier body, a housing body that at least partially encloses the carrier body, at least one stamped grid with several stamped grid connections integrated in the housing body, and also the sensors and/or actuators with sensor elements and sensor connections and respectively actuator elements and actuator connections associated to the control unit. To reduce the space requirement and the costs and to improve the susceptibility to faults in the signal transmission from the sensors/actuators to the control unit, at least some of the sensors/actuators are situated in the control unit or in the immediate proximity of the control unit and are contacted by directly joining their respective sensor connections or actuator connections with stamped grid connections of the stamped grid of the control unit.
摘要:
A circuit arrangement is suggested for monitoring the air volume in vehicle tires which effects the most accurate possible correction of the temperature measured by a sensor fastened at the wheel to the actual air temperature in the tire. For this purpose, the temperature and pressure measurement value of the tire measured by the rotating sensor (13) of the wheel to be monitored is fed to a correction circuit (18) which is also receives a plurality of correction parameters (p, F, K, v). A corrected value for the temperature (t.sub.k) or for the air pressure in the tire is transmitted at the output of the correction circuit (18) as a function of the correction parameters (FIG. 1).
摘要:
A pressure sensor for determining air pressure in an interior of a motor vehicle tire has a housing for extending into a recess formed in a rim wall of the tire, and an annular flange located on the housing and supporting a spring against a side of the rim wall which spring provides for clamping an outer flange portion of the pressure sensor housing against another side of the rim wall.