# US 10,371,074 B2 · Vehicle diagnosis system and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,074 B2 - Document ID: US10371074B2 - Status: Granted - Kind: B2 - Application number: 15/587,888 - Filed: 2017-05-05 - Published: 2017-08-24 - Granted: 2019-08-06 - Earliest claimed: 2013-12-25 - Assignees: Denso Corporation - Applicants: Denso Corporation - Inventors: Satoru Ohsaki - Web page: https://patentgrep.com/patent/US10371074B2 ## CPC - B60W 30/18018: {Start-stop drive, e.g. in a traffic jam} - G07C 5/0825: {using optical means} - B60L 15/2009: {for braking} - B60R 16/0236: {for economical driving} - B60T 17/221: {Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems (hydraulic pressure systems in general F15B19/00, F15B21/04; testing structures or apparatus G01M)} - B60W 20/50: Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode - B60W 30/18127: {Regenerative braking} - B60W 30/192: Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine - F02D 41/042: {for stopping the engine} - F02D 41/22: Safety or indicating devices for abnormal conditions {(in air/fuel ratio feedback systems F02D41/1495, in electric control linkage F02D11/107, in purge control systems F02M25/0809)} - F02D 41/26: using computer, e.g. microprocessor - F02N 11/0818: {Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode} - F02N 11/0825: {related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state} - G07C 5/00: Registering or indicating the working of vehicles - G07C 5/004: {Indicating the operating range of the engine (economical driving B60R16/0236, F02B77/084; measuring liquid fuel of an engine G01F9/00)} - G07C 5/0808: {Diagnosing performance data (testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005)} - G07C 5/0816: {Indicating performance data, e.g. occurrence of a malfunction} - Y02T 10/40: Engine management systems - Y02T 10/72: Electric energy management in electromobility - Y10S 903/904: Component specially adapted for hev - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 1) 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. ### Claim 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.