摘要:
A method for regulating the current through an electromagnetic actuator. The actuator, a first switch and a current-measuring circuit form a series circuit. A free-wheeling diode is parallel-connected to the actuator. The first switch is closed and opened by a control and a pulse generator using a PWM signal (PWM=pulse width modulation) in such a way that the current flowing through the actuator and measured by the current-measuring circuit is regulated to a setpoint value (SW). The time duration of one on and off switching cycle of the PWM signal is altered, and a so-called dither function in the form of a low-frequency oscillation is superimposed on the PWM signal.
摘要:
A method for regulating the current through an electromagnetic actuator. The actuator, a first switch and a current-measuring circuit form a series circuit. A free-wheeling diode is parallel-connected to the actuator. The first switch is closed and opened by a control and a pulse generator using a PWM signal (PWM=pulse width modulation) in such a way that the current flowing through the actuator and measured by the current-measuring circuit is regulated to a setpoint value (SW). The time duration of one on and off switching cycle of the PWM signal is altered, and a so-called dither function in the form of a low-frequency oscillation is superimposed on the PWM signal.
摘要:
A control apparatus, especially a motor vehicle control apparatus, is described having: a first control unit (13), a first programmable memory unit (14), which is assigned to the first control unit and wherein programs and data for the first control unit can be stored; and, a first interface (11) via which programs and data, which are to be stored from an external source (20) in the control apparatus (10), can be transmitted to the first control unit; the first control unit being able to receive the programs and data transmitted thereto and causing a storage of the programs and data into the first memory unit. The described control unit is distinguished by a second interface (12) via which programs and data, which are received via the first interface, can be transmitted by the first control unit to a second control unit (15), the programs and data being provided for storage in a second programmable memory unit, which is assigned to the second control unit and which is storing programs and data for the second control unit.
摘要:
The invention is directed to a method for balancing a current controller for controlling a current. The current controller is configured to adjust the current to a desired value of current while considering an actual value of the current determined by a measurement. The current controller is balanced while considering the deviation between the real magnitude of the current and the actual value applied to adjust the current.
摘要:
An electronic control unit, in particular for motor vehicles, having at least one electronic circuit arranged on at least one p.c. board and at least one additional circuit designed as a hybrid circuit which is attached to the at least one circuit arranged on the at least one p.c. board with an electrically conductive connection. A heat-conducting carrier element, which has mounting surfaces for attaching the at least one p.c. board and the at least one hybrid, is provided.
摘要:
A method and apparatus is described for operating a control apparatus (20) having a control unit (21) coupling to a first programmable memory unit (22) for storing data and programs for controlling the operation of the control apparatus and a non-volatile second memory unit (23). The described method is characterized in that data, which document the programming operation, are stored therein when the programmable memory unit is programmed.
摘要:
A method is described for operating a control apparatus having a programmable memory unit wherein the programming of the memory unit takes place with a sequential execution of a multiplicity of memory programming control operations. The described method is characterized in that: a check step S1 is provided with the aid of which it can be determined whether all, selected individual or several of the memory programming control operations, which must be then have been carried out and a decision step S2 is provided, in which, while considering the check result, a decision is made as to whether the programming operation should be continued as prescribed by executing further memory programming control operations.