Electronic control apparatus for electrically-driven vehicle
First Claim
1. An electronic control apparatus for controlling an electrically-driven vehicle, which has, as a drive power source for vehicle travel, a motor supplied with electric power from an electric power supply source without an engine, and having a self-diagnosis function for storing an abnormality code corresponding to a diagnosis object in the vehicle when abnormality of the diagnosis object is detected, the electronic control apparatus comprising:
- a memory for storing the abnormality code indicative of the abnormality of the diagnosis object; and
a processor, the processor is configured tocheck whether the motor and the electric power supply source are both operating normally when a power control switch is turned on to supply electric power from the electric power supply source under a state that the abnormality code is stored in the memory;
responsive to determining that both the motor and the electric power supply source are operating normally,check whether abnormality is detected again in the diagnosis object, the abnormality code of which has already been stored in the memory;
responsive to determining that no abnormality is detected again, erase the abnormality code stored in the memory,responsive to determining that at least one of the motor and the electric power supply source are not operating normally,(i) repeatedly execute said check as to whether the motor and the electric power supply source are both operating normally until the motor and the electric power supply source are both determined to be operating normally, and (ii) do not execute the check of whether the abnormality is detected again in the diagnosis object, the abnormality code of which has already been stored in the memory;
the electric power supply source is a battery, which is chargeable and dischargeable,whether the motor is operating normally is checked based on either one of a temperature of the motor, and a temperature rise of the motor after the power control switch is turned on, andwhether the electric power supply source which is the battery is operating normally is checked based on one of a temperature of the battery, a temperature rise of the battery after the power control switch is turned on, and an integration value of electric charging and discharging amount of the battery.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic control apparatus controls am electrically-driven vehicle, which has no engine but has only a motor supplied with electric power from an electric power supply source. The electronic control apparatus has a self-diagnosis function for storing an abnormality code corresponding to a diagnosis object when abnormality of the diagnosis object is detected. The electronic control apparatus checks whether the motor and the electric power supply source are operating normally when a power control switch is turned on under a state that the abnormality code is stored in a memory. The electronic control apparatus checks whether abnormality is detected again in the diagnosis object, the abnormality code of which has already been stored, when the motor and the electric power supply source are operating normally. The electronic control unit erases the abnormality code when no abnormality is detected again.
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Citations
11 Claims
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1. An electronic control apparatus for controlling an electrically-driven vehicle, which has, as a drive power source for vehicle travel, a motor supplied with electric power from an electric power supply source without an engine, and having a self-diagnosis function for storing an abnormality code corresponding to a diagnosis object in the vehicle when abnormality of the diagnosis object is detected, the electronic control apparatus comprising:
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a memory for storing the abnormality code indicative of the abnormality of the diagnosis object; and a processor, the processor is configured to check whether the motor and the electric power supply source are both operating normally when a power control switch is turned on to supply electric power from the electric power supply source under a state that the abnormality code is stored in the memory; responsive to determining that both the motor and the electric power supply source are operating normally, check whether abnormality is detected again in the diagnosis object, the abnormality code of which has already been stored in the memory; responsive to determining that no abnormality is detected again, erase the abnormality code stored in the memory, responsive to determining that at least one of the motor and the electric power supply source are not operating normally, (i) repeatedly execute said check as to whether the motor and the electric power supply source are both operating normally until the motor and the electric power supply source are both determined to be operating normally, and (ii) do not execute the check of whether the abnormality is detected again in the diagnosis object, the abnormality code of which has already been stored in the memory; the electric power supply source is a battery, which is chargeable and dischargeable, whether the motor is operating normally is checked based on either one of a temperature of the motor, and a temperature rise of the motor after the power control switch is turned on, and whether the electric power supply source which is the battery is operating normally is checked based on one of a temperature of the battery, a temperature rise of the battery after the power control switch is turned on, and an integration value of electric charging and discharging amount of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification