# US 11,440,529 B2 · Controller for hybrid vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,529 B2 - Document ID: US11440529B2 - Status: Granted - Kind: B2 - Application number: 16/687,784 - Filed: 2019-11-19 - Published: 2020-07-16 - Granted: 2022-09-13 - Earliest claimed: 2019-01-10 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Shunichi Hara; Ryuta Teraya; Daigo Ando - Web page: https://patentgrep.com/patent/US11440529B2 ## CPC - B60W 20/15: Control strategies specially adapted for achieving a particular effect - F01N 3/023: using means for regenerating the filters, e.g. by burning trapped particles - B60K 6/445: Differential gearing distribution type - B60L 50/10: using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines - B60L 50/66: {Arrangements of batteries} - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 20/16: for reducing engine exhaust emissions - F01N 3/035: with catalytic reactors - F01N 3/10: by thermal or catalytic conversion of noxious components of exhaust - F01N 9/002: {of filter regeneration} - F01N 11/002: {the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus} - F02D 41/024: {to increase temperature of the exhaust gas treating apparatus} - F02D 41/0245: {by increasing temperature of the exhaust gas leaving the engine} - F02D 41/0255: {to accelerate the warming-up of the exhaust gas treating apparatus at engine start} - F02D 41/029: {the exhaust gas treating apparatus being a particulate filter} - F02N 11/0829: {related to special engine control, e.g. giving priority to engine warming-up or learning} - F02N 11/084: {State of vehicle accessories, e.g. air condition or power steering} - F02P 5/15: Digital data processing - B60L 2240/36: Temperature of vehicle components or parts - B60W 2510/0676: Engine temperature - B60W 2520/10: Longitudinal speed - B60W 2530/12: Catalyst or filter state - B60W 2710/06: Combustion engines, Gas turbines - B60W 2710/0644: Engine speed - B60W 2710/0677: Engine power - B60W 2710/0694: Engine exhaust temperature - B60W 2710/083: Torque - B60Y 2300/476: Regeneration of particle filters - F01N 2430/08: by modifying ignition or injection timing - F01N 2550/02: Catalytic activity of catalytic converters - F01N 2590/11: for hybrid vehicles - F01N 2900/08: said parameters being related to the engine - F01N 2900/10: said parameters being related to the vehicle or its components - F01N 2900/1606: Particle filter loading or soot amount - F02D 2041/026: {using an external load, e.g. by increasing generator load or by changing the gear ratio} - F02D 2200/0802: Temperature of the exhaust gas treatment apparatus - F02D 2200/0812: Particle filter loading - F02D 2200/101: Engine speed - F02D 2200/501: Vehicle speed - F02N 2200/026: Catalyst temperature - F02N 2200/0801: Vehicle speed - Y02T 10/12: Improving ICE efficiencies - Y02T 10/40: Engine management systems - Y02T 10/62: Hybrid vehicles - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - 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 - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - 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 - 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 - F02P: IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES ({anti-pollution means for internal-combustion engines F02B17/00}; specially adapted for rotary-piston or oscillating-piston engines F02B53/12; {ignition of gas turbine plants F02C7/26; ignition of jet propulsion plants F02K9/95; starting of combustion engines F02N9/00}; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H; {ignition coils H01F38/12}; sparking plugs H01T13/00) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A controller includes an engine controlling section and a motor-generator controlling section. The controller is configured to use the engine controlling section and the motor-generator controlling section to execute an intermittent stop control, a temperature increase control, an intermittent stop prohibition control, and a motoring control. The intermittent stop control automatically stops and restarts operation of an internal combustion engine. The temperature increase control increases the temperature of a filter in the exhaust passage to a temperature at which PM can be burned. The intermittent stop prohibition control prohibits stop of the operation of the internal combustion engine by the intermittent stop control until the temperature increase control is completed. The motoring control drives the output shaft of the internal combustion engine by the motor-generator, thereby forcibly rotating the internal combustion engine. ## Claims ### Claim 1 A controller configured to control a hybrid vehicle, the hybrid vehicle having a battery that is charged with power generated by a motor-generator using output of an internal combustion engine, the controller comprising: an engine controlling section configured to control the internal combustion engine; and a motor-generator controlling section configured to control the motor-generator, wherein the controller is configured to use the engine controlling section and the motor-generator controlling section to execute an intermittent stop control of automatically stopping and restarting operation of the internal combustion engine, execute a temperature increase control of increasing the output of the internal combustion engine to increase an amount of generated heat and increasing an amount of power generated by the motor-generator, thereby increasing a temperature of a filter provided in an exhaust passage of the internal combustion engine to a temperature at which particulate matter can be burned, execute an intermittent stop prohibition control of prohibiting stop of the operation of the internal combustion engine from when the temperature increase control is started to when the temperature increase control is completed, and execute a motoring control of driving an output shaft of the internal combustion engine using the motor-generator on condition that the temperature of the filter is the temperature at which the particulate matter can be burned, thereby forcibly rotating the internal combustion engine. ### Claim 2 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein the controller is configured to, in the temperature increase control, execute an output raising control of increasing a requested output as a control of increasing the output of the internal combustion engine. ### Claim 3 (depends on 2) The controller for a hybrid vehicle according to claim 2, wherein the controller is configured to, in the temperature increase control, execute a lower limit raising control of raising a lower limit of an engine rotation speed, in addition to the output raising control. ### Claim 4 (depends on 2) The controller for a hybrid vehicle according to claim 2, wherein the controller is configured to, in the temperature increase control, execute an ignition timing retardation control of retarding an ignition timing, in addition to the output raising control. ### Claim 5 (depends on 4) The controller for a hybrid vehicle according to claim 4, wherein the controller is configured to execute the ignition timing retardation control in the temperature increase control on condition that a deposit amount of the particulate matter in the filter is greater than or equal to a specified deposit amount, and prohibit the ignition timing retardation control in the temperature increase control when the deposit amount of the particulate matter in the filter is less than the specified deposit amount. ### Claim 6 (depends on 4) The controller for a hybrid vehicle according to claim 4, wherein the controller is configured to, in the ignition timing retardation control, progressively reduce an amount of retardation of the ignition timing as a deposit amount of the particulate matter decreases. ### Claim 7 (depends on 4) The controller for a hybrid vehicle according to claim 4, wherein the controller is configured to, in the temperature increase control, execute the ignition timing retardation control while prohibiting an exhaust gas recirculation control of recirculating exhaust gas to a combustion chamber. ### Claim 8 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein the controller is configured to when a deposit amount of the particulate matter in the filter is greater than or equal to a reference deposit amount, execute the temperature increase control while setting a target temperature to a first temperature and increase the temperature of the filter to the first temperature, and when the deposit amount of the particulate matter in the filter is less than the reference deposit amount, execute the temperature increase control while setting the target temperature to a second temperature, which is lower than the first temperature, and increase the temperature of the filter to the second temperature. ### Claim 9 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein the hybrid vehicle includes a catalytic converter that is arranged in the exhaust passage of the internal combustion engine and purifies exhaust gas in addition to the filter, and the controller is configured to prohibit the execution of the motoring control when the temperature of the filter is higher than or equal to a specified temperature even if the temperature of the filter is the temperature at which the particulate matter can be burned. ### Claim 10 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein the hybrid vehicle includes a catalytic converter that is arranged in a section of the exhaust passage of the internal combustion engine on an upstream side of the filter and purifies exhaust gas, and the controller is configured to determine whether the motoring control should be executed in accordance with a deposit amount of the particulate matter when a temperature of the catalytic converter has reached a temperature at which execution of a catalyst degradation limitation control of prohibiting the execution of the motoring control is requested, execute the motoring control without executing the catalyst degradation limitation control when the deposit amount of the particulate matter in the filter is greater than or equal to a determination deposit amount, and prohibit the execution of the motoring control while executing the catalyst degradation limitation control when the deposit amount of the particulate matter in the filter is less than the determination deposit amount. ### Claim 11 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein the controller is configured to execute the motoring control on condition that a vehicle speed is higher than or equal to a specified vehicle speed. ### Claim 12 A controller configured to control a hybrid vehicle, the hybrid vehicle having a battery that is charged with power generated by a motor-generator using output of an internal combustion engine, the controller comprising: circuitry configured to control the internal combustion engine and the motor-generator, wherein the circuitry is configured to automatically stop and restart operation of the internal combustion engine, increase the output of the internal combustion engine to increase an amount of generated heat and increase an amount of power generated by the motor-generator, thereby increasing a temperature of a filter in an exhaust passage of the internal combustion engine to a temperature at which particulate matter can be burned, prohibit stop of the operation of the internal combustion engine from when the increase of the output of the internal combustion engine is started to when the increase of the output of the internal combustion engine is completed, and cause an output shaft of the internal combustion engine to be forcibly driven by the motor-generator after the temperature of the filter is the temperature at which the particulate matter can be burned, thereby forcibly rotating the internal combustion engine. ### Claim 13 (depends on 1) The controller for a hybrid vehicle according to claim 1, wherein fuel injection and ignition are stopped during the motoring control. ### Claim 14 (depends on 12) The controller for a hybrid vehicle according to claim 12, wherein fuel injection and ignition are stopped while the output shaft of the internal combustion engine is forcibly driven by the motor generator.