# US 9,751,524 B2 · Hybrid vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,524 B2 - Document ID: US9751524B2 - Status: Granted - Kind: B2 - Application number: 15/258,129 - Filed: 2016-09-07 - Published: 2017-03-09 - Granted: 2017-09-05 - Earliest claimed: 2015-09-09 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Keisuke Morisaki; Takahiro Nishigaki; Daigo Ando; Yuichiro Kawai - Web page: https://patentgrep.com/patent/US9751524B2 ## CPC - B60W 20/16: for reducing engine exhaust emissions - B60K 6/445: Differential gearing distribution type - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 2510/0676: Engine temperature - B60W 2530/12: Catalyst or filter state - B60W 2710/0677: Engine power - B60Y 2300/474: Catalyst warm up - B60Y 2300/476: Regeneration of particle filters - Y02T 10/40: Engine management systems - Y02T 10/62: Hybrid vehicles - 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 - 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 - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract When a starting point water temperature Twst is equal to or lower than a threshold value Twref1, catalyst warm-up control is executed, and when a cooling water temperature Tw becomes higher than the threshold value Twref1 or an operation time top of an engine becomes equal to or higher than a threshold value topref1, the control of the engine is shifted from the catalyst warm-up control to normal control. When the starting point water temperature Twst is higher than the threshold value Twref1 and is equal to or lower than a threshold value Twref2, PN suppression control is executed, and when the cooling water temperature Tw of the engine becomes higher than the threshold value Twref2 or the operation time top of the engine becomes equal to or higher than a threshold value topref2, the control of the engine is shifted from the PN suppression control to the normal control. ## Claims ### Claim 1 A hybrid vehicle by comprising: an engine and a motor for driving; a battery that exchanges power with the motor; a controller configured to control the engine and the motor so that the engine is driven depending on a required output for driving while being intermittently operated, wherein the control controller, executes normal control in which the engine is controlled so that a target output of the engine according to the required output is output from the engine when a starting point water temperature that is a cooling water temperature at the start of the operation of the engine is higher than a second predetermined temperature higher than a first predetermined temperature, executes first control in which the engine is controlled so that an output of the engine is limited to a first predetermined output or lower and a catalyst of an exhaust gas control apparatus of the engine is warmed up when the starting point water temperature is equal to or lower than the first predetermined temperature, and then shifts to the normal control when the cooling water temperature becomes higher than the first predetermined temperature or when a first predetermined time has lapsed from the start of the operation of the engine, and executes second control in which the engine is controlled so that the output of the engine is limited to a second predetermined output or lower that is greater than the first predetermined output and a discharge amount of particulate matter from the engine is suppressed when the starting point water temperature is higher than the first predetermined temperature and is equal to or lower than the second predetermined temperature, and then shifts to the normal control when the cooling water temperature becomes higher than the second predetermined temperature or when a second predetermined time has lapsed from the start of the operation of the engine. ### Claim 2 (depends on 1) The hybrid vehicle according to claim 1, wherein the second predetermined output is set so that the second predetermined output when the starting point water temperature is low becomes smaller than that when the starting point water temperature is high. ### Claim 3 (depends on 1) The hybrid vehicle according to claim 1, wherein the second predetermined time is set so that the second predetermined time when the starting point water temperature is low becomes longer than that when the starting point water temperature is high. ### Claim 4 (depends on 1) The hybrid vehicle according to claim 1, wherein when the starting point water temperature is higher than the first predetermined temperature and is equal to or lower than the second predetermined temperature, the controller is configured to shift to the normal control after the second control is executed when a stop time from the end of a previous operation of the engine to the start of a current operation of the engine is equal to or greater than a third predetermined time, and executes the normal control without executing the second control when the stop time is smaller than the third predetermined time. ### Claim 5 (depends on 4) The hybrid vehicle according to claim 4, wherein the third predetermined time is set so that the third predetermined time when the starting point water temperature is low becomes shorter than that when the starting point water temperature is high. ### Claim 6 (depends on 1) The hybrid vehicle according to claim 1, wherein the controller is configured to shift to the normal control when an integrated air quantity from the start of the operation of the engine reaches a predetermined air quantity or greater even when the cooling water temperature is maintained lower than the second predetermined temperature and a time form the start of the operation of the engine is within the second predetermined time, during the execution of the second control. ### Claim 7 (depends on 6) The hybrid vehicle according to claim 6, wherein the predetermined air quantity is set so that the predetermined air quantity when the starting point water temperature is low becomes greater than that when the starting point water temperature is high.