Abstract:
An adjustable exterior mirror on a vehicle, or another kind of settable unit for installation in or on the vehicle, signals a sensor signal via the current through the current conductors for the supply current of a motor, heating or other function holder in the vision unit. In response to external switching-on of a supply voltage between the current conductors, for example from the vehicle, an aspect of the current is sensor-dependently controlled from the settable unit. In the vehicle, the aspect of the current through at least one of the current conductors is measured during a delay time interval after switching-on of the supply voltage to read out the sensor result.
Abstract:
The invention relates to an adjustment device for adjusting shutoff elements of an air inlet of a motor compartment of a motor vehicle between at least a first position in which the air inlet is substantially closed and a second position in which the air inlet is substantially open. The adjustment device comprises a drive unit. The drive unit comprises a drive train, an electric motor with an output shaft for driving the drive train, and a drive shaft. The drive train comprises at least one reduction element. The reduction element, the output shaft of the electric motor, and the output shaft of the adjustment device form drive elements of the drive unit. The adjustment device is provided with a condition determining unit for determining a motion condition of at least one of the drive elements.
Abstract:
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a communication module for communicating with a vehicle control network for receiving first adjustment instructions for adjusting the first flap, a power supply module comprising an input power terminal for receiving power from a vehicle power network and a first output power terminal for supplying a first current to the driving unit. The control unit further comprises a current sensor module for sensing variations in the first supply current and a control module arranged to control the first supply current in accordance with the adjustment instructions and the sensed variations. By separating the control module from the driving unit, functionality of the control module may be shared over multiple driving units.
Abstract:
An electric motor assembly is configured to determine a motor winding resistance value. Predicted values are determined for a first and second position of motor commutator sections relative to the motor brushes, with at least one of the brushes contacting different numbers of the sections in the first position and the second position. The predicted values are based on a temperature value measured by the temperature sensor and a predetermined dependence of variation of the motor resistance dependent on the temperature value. An electric motor current value is measured by a current sensor when the electric motor is substantially at standstill. A selection is made between different factors for determining the motor resistance value using the electric current value, dependent on which of the predicted values most closely corresponds to the electric current value. The motor resistance is determined using said electric current value according to the selected factor.
Abstract:
An adjustable vehicle mirror assembly uses a revolution sensor for detecting revolutions of an element in a mirror rotation drive chain. A control circuit uses the revolution sensor control rotation of the mirror to a preset orientation by counting revolutions and controlling a motor power supply and its direction dependent on whether the count indicates that the count of revolutions has reached a preset value. At power down, power up or when a new preset value is defined the control circuit switches to an overrule state in order to calibrate an offset. The control circuit continues operating in the overrule state until a rotation coupling in the mirror assembly reaches a disengaged state or stalls.
Abstract:
Adjustment device for adjusting shutoff elements of an air inlet of a motor vehicle, wherein the shutoff elements are adjustable between an open position in which the air inlet is substantially open and a closed position in which the air inlet is substantially closed, includes a drive unit for adjusting the shutoff elements between at least the open position and the closed position, and a fail-safe mechanism which is arranged for adjusting the air inlet to a predefined position in case of a calamity situation. The adjustment device includes a blocking mechanism for blocking the operation of the fail-safe mechanism in predetermined situations, wherein in such predetermined situations the shutoff elements are adjustable to a predefined position without activation of the fail-safe mechanism.
Abstract:
The invention relates to a system for adjusting at least two sets of shutoff elements of an air intake of a motor compartment of a motor vehicle. The system comprises at least two adjustment units. Each adjustment unit comprises a drive unit comprising an electric motor and a drive train for adjusting a set of shutoff elements. One adjustment unit is a primary adjustment unit and a further adjustment unit is a secondary adjustment unit. The primary adjustment unit is arranged for primary connection with a central control unit, such as an onboard computer of a motor vehicle. Also, the primary adjustment unit is arranged for secondary connection with the secondary adjustment unit. In the system the secondary adjustment unit has no direct connection with the central control unit.
Abstract:
An electric motor assembly is configured to determine a motor winding resistance value. Predicted values are determined for a first and second position of motor commutator sections relative to the motor brushes, with at least one of the brushes contacting different numbers of the sections in the first position and the second position. The predicted values are based on a temperature value measured by the temperature sensor and a predetermined dependence of variation of the motor resistance dependent on the temperature value. An electric motor current value is measured by a current sensor when the electric motor is substantially at standstill. A selection is made between different factors for determining the motor resistance value using the electric current value, dependent on which of the predicted values most closely corresponds to the electric current value. The motor resistance is determined using said electric current value according to the selected factor.
Abstract:
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a communication module for communicating with a vehicle control network for receiving first adjustment instructions for adjusting the first flap, a power supply module comprising an input power terminal for receiving power from a vehicle power network and a first output power terminal for supplying a first current to the driving unit. The control unit further comprises a current sensor module for sensing variations in the first supply current and a control module arranged to control the first supply current in accordance with the adjustment instructions and the sensed variations. By separating the control module from the driving unit, functionality of the control module may be shared over multiple driving units.
Abstract:
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a communication module for communicating with a vehicle control network for receiving first adjustment instructions for adjusting the first flap, a power supply module comprising an input power terminal for receiving power from a vehicle power network and a first output power terminal for supplying a first current to the driving unit. The control unit further comprises a current sensor module for sensing variations in the first supply current and a control module arranged to control the first supply current in accordance with the adjustment instructions and the sensed variations. By separating the control module from the driving unit, functionality of the control module may be shared over multiple driving units.