# US 11,906,042 B2 · Gear shift control device of vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,042 B2 - Document ID: US11906042B2 - Status: Granted - Kind: B2 - Application number: 18/190,436 - Filed: 2023-03-27 - Published: 2023-10-05 - Granted: 2024-02-20 - Earliest claimed: 2022-04-05 - Assignees: Mazda Motor Corporation - Applicants: Mazda Motor Corporation - Inventors: Daigo Nishikori; Hiroaki Gotan; Akina Inagaki; Tomohiro Okubo; Kiminori Higo; Takayuki Mikami - Web page: https://patentgrep.com/patent/US11906042B2 ## CPC - B60K 6/48: Parallel type - F16H 61/0213: {characterised by the method for generating shift signals} - B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means - B60K 6/547: the transmission being a stepped gearing - B60W 10/11: Stepped gearings - B60W 20/16: for reducing engine exhaust emissions - B60W 30/18127: {Regenerative braking} - B60K 2006/4825: {Electric machine connected or connectable to gearbox input shaft} - B60L 7/26: Controlling the braking effect - F16H 2061/0227: {Shift map selection, i.e. methods for controlling selection between different shift maps, e.g. to initiate switch to a map for up-hill driving} - Y02T 10/62: Hybrid vehicles - 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 - F16H: GEARING - 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 - 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 - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A gear shift control device of an automobile includes memory storing a gear shift map that defines, for each of gear shift points, thresholds of the number of revolutions to determine a switching start timing of each of the gear positions, a transmission control unit that performs switching between the gear positions based on the gear shift map, and a regeneration control unit that controls regeneration. The gear shift map includes a non-cooperative regeneration map that defines the thresholds of revolutions lower than the thresholds in a cooperative request map used in cooperative regeneration, and the non-cooperative regeneration map includes a combustion request map that defines the thresholds of low revolutions and is used when an accelerator is not used, and a travel request map that defines the thresholds of relatively higher revolutions and is used when the accelerator is used. ## Claims ### Claim 1 A gear shift control device of a vehicle including an engine and a motor installed as driving sources, and an automatic transmission provided between the driving sources and drive wheels, the automatic transmission performing a gear shift by switching between high and low gear positions through hydraulic control, the gear shift control device comprising: memory storing a gear shift map that defines, for each of a plurality of gear shift points, thresholds of a number of revolutions on a downshift side and on an upshift side to determine a switching start timing of each of the gear positions; a transmission control unit that switches between the high and low gear positions based on the gear shift map; and a regeneration control unit that controls regeneration by the motor, wherein the gear shift map includes a cooperative regeneration map used in cooperative regeneration that cooperates with a brake, and a non-cooperative regeneration map used in other than cooperative regeneration, the non-cooperative regeneration map defining the thresholds of revolutions lower than the thresholds in the cooperative regeneration map, and wherein the non-cooperative regeneration map includes a first map that defines the thresholds of relatively low revolutions and is used when an accelerator is not used, and a second map that defines the thresholds of relatively higher revolutions and is used when the accelerator is used. ### Claim 2 (depends on 1) The gear shift control device according to claim 1, wherein the thresholds of high gear shift points among the gear shift points are defined to be an identical value on the downshift side in the cooperative regeneration map and the second map, the high gear shift points being higher than a predetermined low gear shift point. ### Claim 3 (depends on 2) The gear shift control device according to claim 2, further comprising: a relay clutch control unit that controls a relay clutch, wherein the relay clutch is included in the vehicle, the relay clutch being provided between the engine and the automatic transmission to enable the engine to be disconnected from the automatic transmission, wherein the relay clutch control unit performs deceleration regeneration start processing that disconnects the relay clutch in a predetermined high speed position during deceleration and performs deceleration regeneration end processing that connects the disconnected relay clutch, wherein the deceleration regeneration end processing includes processing that connects the relay clutch before switching at a predetermined low gear shift point by using the non-cooperative regeneration map, and wherein in the non-cooperative regeneration map, a difference between the thresholds of the predetermined low gear shift point and one of the gear shift points that is higher than the predetermined low gear shift point by one level is defined to be larger than differences among the other gear shift points. ### Claim 4 (depends on 3) The gear shift control device according to claim 3, wherein the thresholds of a lowest gear shift point in the non-cooperative regeneration map and a lowest gear shift point in the cooperative regeneration map are defined to be an identical value. ### Claim 5 (depends on 4) The gear shift control device according to claim 4, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used. ### Claim 6 (depends on 3) The gear shift control device according to claim 3, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used. ### Claim 7 (depends on 2) The gear shift control device according to claim 2, wherein the thresholds of a lowest gear shift point in the non-cooperative regeneration map and a lowest gear shift point in the cooperative regeneration map are defined to be an identical value. ### Claim 8 (depends on 7) The gear shift control device according to claim 7, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used. ### Claim 9 (depends on 2) The gear shift control device according to claim 2, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used. ### Claim 10 (depends on 1) The gear shift control device according to claim 1, further comprising: a relay clutch control unit that controls a relay clutch, wherein the relay clutch is included in the vehicle, the relay clutch being provided between the engine and the automatic transmission to enable the engine to be disconnected from the automatic transmission, wherein the relay clutch control unit performs deceleration regeneration start processing that disconnects the relay clutch in a predetermined high speed position during deceleration and performs deceleration regeneration end processing that connects the disconnected relay clutch, wherein the deceleration regeneration end processing includes processing that connects the relay clutch before switching at a predetermined low gear shift point by using the non-cooperative regeneration map, and wherein in the non-cooperative regeneration map, a difference between the thresholds of the predetermined low gear shift point and one of the gear shift points that is higher than the predetermined low gear shift point by one level is defined to be larger than differences among the other gear shift points. ### Claim 11 (depends on 1) The gear shift control device according to claim 1, wherein the thresholds of a lowest gear shift point in the non-cooperative regeneration map and a lowest gear shift point in the cooperative regeneration map are defined to be an identical value. ### Claim 12 (depends on 11) The gear shift control device according to claim 11, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used. ### Claim 13 (depends on 1) The gear shift control device according to claim 1, wherein when the gear shift points on the downshift side and the upshift side that have an identical gear position in the gear shift map are compared with each other, the thresholds on the upshift side are defined larger than the thresholds on the downshift side, and wherein when a transition between the downshift side and the upshift side is first performed, an identical gear shift map is used.