Apparatus and method for diagnosing actuators in vehicle
First Claim
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1. An apparatus for diagnosing actuators in a vehicle, comprising:
- a communication unit configured to communicate with an external terminal;
a storage configured to store a diagnosable vehicle identifier;
a diagnostic unit configured to transmit a response to whether a vehicle identifier included in a diagnosis request message received from the external terminal matches the vehicle identifier stored in the storage to the external terminal, receive a reference power value and a tolerance range of an actuator to be diagnosed to determine whether the actuator is out of order from the external terminal upon determination that the vehicle identifier included in the diagnosis request message matches the vehicle identifier stored in the storage, store the received reference power value and tolerance range in the storage, and generate a control signal for performing a measurement; and
a measurement unit configured to drive the actuator to be diagnosed depending on the control signal to measure power consumption of a battery,wherein the diagnostic unit determines whether the actuator is out of order depending on whether a change of power consumption is within a tolerance range of the reference power value.
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Abstract
An apparatus and a method for diagnosing actuators in a vehicle can improve accuracy and reliability of a failure diagnosis by allowing a diagnostic control apparatus in a vehicle to measure power data and implementing a fast diagnosis by reducing a separation time and a diagnosis time of a measurement apparatus.
16 Citations
20 Claims
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1. An apparatus for diagnosing actuators in a vehicle, comprising:
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a communication unit configured to communicate with an external terminal; a storage configured to store a diagnosable vehicle identifier; a diagnostic unit configured to transmit a response to whether a vehicle identifier included in a diagnosis request message received from the external terminal matches the vehicle identifier stored in the storage to the external terminal, receive a reference power value and a tolerance range of an actuator to be diagnosed to determine whether the actuator is out of order from the external terminal upon determination that the vehicle identifier included in the diagnosis request message matches the vehicle identifier stored in the storage, store the received reference power value and tolerance range in the storage, and generate a control signal for performing a measurement; and a measurement unit configured to drive the actuator to be diagnosed depending on the control signal to measure power consumption of a battery, wherein the diagnostic unit determines whether the actuator is out of order depending on whether a change of power consumption is within a tolerance range of the reference power value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A terminal for diagnosing actuators in a vehicle by communicating with an apparatus in the vehicle, comprising:
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a communication unit configured to communicate with the apparatus in the vehicle; a user interface unit configured to input and output information; a storage configured to store reference power values and tolerance ranges for each actuator to be diagnosed, while being divided depending on a vehicle identifier; and a diagnostic unit configured to transmit a diagnostic request message including the vehicle identifier to the apparatus in the vehicle, and transmit a message including the reference power value and a tolerance range of an actuator to be diagnosed to the apparatus in the vehicle depending on a corresponding response received from the apparatus in the vehicle so as to determine whether the actuator is out of order depending on whether a change of power consumption of a battery depending on a driving of the actuator to be diagnosed in the apparatus in the vehicle is within a tolerance range of the reference power value. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for diagnosing actuators in a vehicle, comprising steps of:
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transmitting a diagnosis request message including a vehicle identifier from a terminal to an apparatus in the vehicle; transmitting a response to whether a vehicle identifier stored in the apparatus in the vehicle matches the vehicle identifier included in the diagnosis request message to the terminal; if the vehicle identifier stored in the apparatus in the vehicle matches the vehicle identifier included in the diagnosis request message, transmitting a message including a reference power value and a tolerance range of the actuator to be diagnosed to determine whether the actuator is out of order from the terminal to the apparatus in the vehicle; driving, by the apparatus in the vehicle, the actuator to be diagnosed to measure power consumption of a battery; and determining whether the actuator is out of order depending on whether a change of power consumption of a battery within a tolerance range of the reference power value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification