Alternative input control method and device
First Claim
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1. An alternative input control method comprising:
- outputting to a controlled object a control signal that on-off controls the controlled object from an electronic control unit;
determining whether the controlled object is turned on or not, based on an input voltage that is fed back into the electronic control unit from the controlled object; and
repeatedly determining whether or not a battery supply voltage is equal to or higher than a defined voltage, wherein;
the alternative input control method includes one of the following operations, if the battery supply voltage is equal to or higher than the defined voltage, as normal input processing;
setting an input value at one of (1) an ON value that indicates the controlled object is turned on, when the input voltage is equal to or higher than a first ON determination threshold voltage, and (1) the OFF value that indicates the controlled object is turned off, when the input voltage is equal to or lower than a first OFF determination threshold voltage lower than the first ON determination threshold voltage; and
setting the input value at one of (2) an OFF value that indicates the controlled object is turned off, when the input voltage is equal to or higher than a second OFF determination threshold voltage, and (2) the ON value that indicates the controlled object is turned on, when the input voltage is equal to or lower than a second ON determination threshold voltage lower than the second OFF determination threshold voltage; and
the alternative input control method includes the following operation if the battery supply voltage is lower than the defined voltage, as alternative input processing;
changing the input value in accordance with change of an output of the control signal, which is outputted from the electronic control unit.
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Abstract
An electronic control unit determines whether a level of a battery supply voltage is low, and whether a feedback system of a door lock control device is in an abnormal state. If the level of the battery supply voltage is determined to be low, or if the feedback system of the door lock control device is determined to be in the abnormal state, the electronic control unit performs alternative input processing. Internal control information, which is used by the electronic control unit for controlling a controlled object, is used for obtaining an alternative input value.
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Citations
10 Claims
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1. An alternative input control method comprising:
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outputting to a controlled object a control signal that on-off controls the controlled object from an electronic control unit; determining whether the controlled object is turned on or not, based on an input voltage that is fed back into the electronic control unit from the controlled object; and repeatedly determining whether or not a battery supply voltage is equal to or higher than a defined voltage, wherein; the alternative input control method includes one of the following operations, if the battery supply voltage is equal to or higher than the defined voltage, as normal input processing; setting an input value at one of (1) an ON value that indicates the controlled object is turned on, when the input voltage is equal to or higher than a first ON determination threshold voltage, and (1) the OFF value that indicates the controlled object is turned off, when the input voltage is equal to or lower than a first OFF determination threshold voltage lower than the first ON determination threshold voltage; and setting the input value at one of (2) an OFF value that indicates the controlled object is turned off, when the input voltage is equal to or higher than a second OFF determination threshold voltage, and (2) the ON value that indicates the controlled object is turned on, when the input voltage is equal to or lower than a second ON determination threshold voltage lower than the second OFF determination threshold voltage; and the alternative input control method includes the following operation if the battery supply voltage is lower than the defined voltage, as alternative input processing; changing the input value in accordance with change of an output of the control signal, which is outputted from the electronic control unit. - View Dependent Claims (2, 3, 4, 5)
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6. An alternative input control device comprising:
an electronic control unit that outputs to a controlled object a control signal that on-off controls the controlled object, and that determines whether the controlled object is turned on or off based on an input voltage, which is fed back from the controlled object, wherein the electronic control unit includes; a battery supply voltage determination element that repeatedly determines whether or not a battery supply voltage is equal to or higher than a defined voltage; a normal input value setting element, which performs one of following operations if the battery supply voltage is equal to or higher than the defined voltage; setting an input value at one of (1) an ON value that indicates the controlled object is turned on, when the input voltage is equal to or higher than a first ON determination threshold voltage, and (1) the OFF value that indicates the controlled object is turned off, when input voltage is equal to or lower than a first OFF determination threshold voltage lower than the first ON determination threshold voltage; and setting the input value at one of (2) an OFF value that indicates the controlled object is turned off, when the input voltage is equal to or higher than a second OFF determination threshold voltage, and (2) the ON value that indicates the controlled object is turned on, when the input voltage is equal to or lower than a second ON determination threshold voltage lower than the second OFF determination threshold voltage; and an alternative input value setting element, which performs the following operations if the battery supply voltage is lower than the defined voltage; changing the input value in accordance with change of an output of the control signal, which is outputted from the electronic control unit. - View Dependent Claims (7, 8, 9, 10)
Specification