Electrical control unit for a vehicle actuation system
First Claim
1. An electrical control unit configured to determine a current consumption of a current controlled actuator in a vehicle and comprising:
- an input configured to receive an input signal that is indicative of a current consumption from a current controlled actuator;
an adder configured to add a bias signal that is representative of a bias voltage to the input signal and to output a summation signal;
an amplifier configured to generate an amplified signal by amplifying the summation signal output by the adder;
a subtractor configured to subtract a signal representative of the bias signal from the amplified signal to reconstruct a signal indicative of the input signal; and
a determining unit configured to determine the current consumption of the current controlled actuator from the signal output by the subtractor.
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Accused Products
Abstract
An electrical control unit, or ECU, for a vehicle actuation system is described. The electrical control unit determines a current consumption of a current controlled actuator and comprises an input to receive an input signal from the current controlled actuator, an adder to add a bias signal to the input signal, an amplifier to generate an amplified signal by amplifying the signal output by the adder, a subtractor to subtract a signal representative of the bias signal from the amplified signal, and a determining unit to determine the current consumption from the signal output by the subtractor.
20 Citations
18 Claims
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1. An electrical control unit configured to determine a current consumption of a current controlled actuator in a vehicle and comprising:
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an input configured to receive an input signal that is indicative of a current consumption from a current controlled actuator; an adder configured to add a bias signal that is representative of a bias voltage to the input signal and to output a summation signal; an amplifier configured to generate an amplified signal by amplifying the summation signal output by the adder; a subtractor configured to subtract a signal representative of the bias signal from the amplified signal to reconstruct a signal indicative of the input signal; and a determining unit configured to determine the current consumption of the current controlled actuator from the signal output by the subtractor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for operation of an electrical control unit for determining a current consumption of a current controlled actuator in a vehicle, the method comprising the steps of:
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receiving an input signal that is indicative of a current consumption from a current controlled actuator; adding a bias signal that is representative of a bias voltage to the input signal; amplifying the sum of the input signal and the bias signal and outputting an amplified signal; subtracting a signal representative of the bias signal from the amplified signal to reconstruct a signal indicative of the input signal; and determining the current consumption of the current controlled actuator from the result of the subtraction. - View Dependent Claims (15, 16, 17, 18)
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Specification