Vehicle diagnosis system and method

Patent metadata

Field	Value
Publication number	US-10371074-B2
Application number	US-201715587888-A
Country	US
Kind code	B2
Filing date	May 5, 2017
Priority date	Dec 25, 2013
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A vehicle diagnosis system determines whether a vehicle has an abnormality in a temporal engine stop function or a power regeneration function that negates a greenhouse gas reduction effect of the engine. When the vehicle diagnosis system determines an abnormality, the vehicle diagnosis system provides a notification of the abnormality.

First claim

What is claimed is:

1. A vehicle diagnosis system for performing a diagnosis for a vehicle having a temporal engine stop function that temporarily stops an engine of the vehicle in a certain condition satisfied state, the vehicle diagnosis system comprising:
a sensor detecting a parameter associated with the vehicle;
a controller, including a computer processor and memory, the controller being configured at least to:
determine an occurrence of a specific abnormality of the vehicle based on the detected parameter, the specific abnormality being an abnormality that cancels a greenhouse gas reduction effect by the temporal engine stop function, wherein
the specific abnormality is an abnormality that hinders or delays (i) a satisfaction of a condition of a temporal stop of the engine or (ii) a determination of satisfaction of the condition of the temporal stop of the engine; and
even though an accumulated value of an input power to a battery installed in the vehicle in a current trip is greater than a specified value, the specific abnormality includes an abnormality that hinders or delays (i) a reaching of a remaining charge amount of the battery installed in the vehicle to a standard amount as the satisfaction of the condition or (ii) a detection of the reaching of the remaining charge amount to the standard amount as the determination of the satisfaction of the condition; and

provide an output, via a communicator of the vehicle, to a device, that is external from the vehicle, based on the determined occurrence of the specific abnormality.

2. The vehicle diagnosis system of claim 1 , wherein
the specific abnormality includes an abnormality that hinders or delays (i) a reaching of an engine cooling water temperature to a standard temperature as the satisfaction of the condition or (ii) a detection of the reaching of the engine cooling water temperature to the standard temperature as the determination of the satisfaction of the condition.

3. The vehicle diagnosis system of claim 1 , wherein
the specific abnormality includes an abnormality that hinders or delays (i) a reaching of a sensor temperature of a sensor that is disposed in an exhaust passage of the engine to a standard temperature as the satisfaction of the condition or (ii) a detection of the reaching of the sensor temperature to the standard temperature as the determination of the satisfaction of the condition.

4. The vehicle diagnosis system of claim 1 , wherein
the specific abnormality includes an abnormality that hinders or delays (i) a reaching of an inter-terminal voltage of a battery disposed in the vehicle to a standard voltage as the satisfaction of the condition or (ii) a detection of the reaching of the inter-terminal voltage to the standard voltage as the determination of the satisfaction of the condition.

5. The vehicle diagnosis system of claim 1 , wherein
the specific abnormality includes an abnormality that hinders or delays (i) a reaching of an oil temperature of a transmission disposed in the vehicle to a standard temperature as the satisfaction of the condition or (ii) a detection of the reaching of the oil temperature to the standard temperature as the determination of the satisfaction of the condition.

6. A vehicle diagnosis method for performing a diagnosis for a vehicle having a temporal engine stop function that temporarily stops an engine of the vehicle in a certain condition satisfied state, the vehicle diagnosis method comprising:
detecting, using a sensor, a parameter associated with the vehicle;
determining, using a controller including a computer processor and memory,
an occurrence of abnormality of the vehicle based on the detected parameter, which includes determining whether a specific abnormality is occurring, and
whether the specific abnormality is an abnormality that cancels a greenhouse gas reduction effect by the temporal engine stop function; wherein

the specific abnormality is an abnormality that hinders or delays (i) a satisfaction of a condition of a temporal stop of the engine or (ii) a determination of satisfaction of the condition of the temporal stop of the engine; and
even though an accumulated value of an input power to a battery installed in the vehicle in a current trip is greater than a specified value, the specific abnormality includes an abnormality that hinders or delays (i) a reaching of a remaining charge amount of the battery installed in the vehicle to a standard amount as the satisfaction of the condition or (ii) a detection of the reaching of the remaining charge amount to the standard amount as the determination of the satisfaction of the condition; and
providing an output, via a communicator of the vehicle, to a device, that is external from the vehicle, based on the determined occurrence of the specific abnormality.

Assignees

• Denso Corp

Inventors

• Ohsaki Satoru

Classifications

• G07C5/00

  Registering or indicating the working of vehicles · CPC title

• Y02T10/48

  Cross-Sectional Technologies · mapped topic

• G07C5/0825 Primary

  using optical means · CPC title

• F02N11/0825

  related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state · CPC title

• G07C5/0816

  Indicating performance data, e.g. occurrence of a malfunction · CPC title