# US 11,999,238 B2 · Engine system and all-terrain vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,238 B2 - Document ID: US11999238B2 - Status: Granted - Kind: B2 - Application number: 17/882,222 - Filed: 2022-08-05 - Published: 2022-12-01 - Granted: 2024-06-04 - Earliest claimed: 2020-02-26 - Assignees: Segway Technology Co., Ltd. - Applicants: Segway Technology Co., Ltd. - Inventors: Li Li - Web page: https://patentgrep.com/patent/US11999238B2 ## CPC - B60K 6/40: characterised by the assembly or relative disposition of components - B60K 6/46: Series type - B60K 1/02: comprising more than one electric motor - B60K 5/12: Arrangement of engine supports - B60K 6/24: characterised by the combustion engines - B60K 6/26: characterised by the motors or the generators - B60K 6/36: characterised by the transmission gearings - B60K 6/405: Housings - B60K 6/442: Series-parallel switching type - B60K 6/52: Driving a plurality of drive axles, e.g. four-wheel drive - B60K 6/543: the transmission being a continuously variable transmission - B60K 6/547: the transmission being a stepped gearing - B60K 17/06: of change-speed gearing (B60K17/10 - B60K17/16 take precedence) - B60K 17/22: characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft - B60L 15/20: for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed - B60L 15/32: Control or regulation of multiple-unit electrically-propelled vehicles - H02K 7/18: Structural association of electric generators with mechanical driving motors, e.g. with turbines - B60K 2006/266: {with two coaxial motors or generators} - B60K 2006/542: {with overdrive ratio} - B60Y 2200/20: Off-Road Vehicles - Y02T 10/62: Hybrid vehicles - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/72: Electric energy management in electromobility - 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 - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An engine system comprising: a housing having an accommodating cavity; a crankshaft part, a speed change mechanism and a transmission shaft are provided in the accommodating cavity; and a first motor and a second motor are located outside the accommodating cavity and provided on the housing. The crankshaft part is provided in the accommodating cavity and outputs first power. The first motor comprises a first motor shaft which is connected to an output end of the crankshaft part to convert the first power into electric energy. The second motor comprises a second motor shaft and is configured to output second power according to electric energy. The speed change mechanism is drivingly connected to the second motor shaft without connecting the output end of the crankshaft part. The transmission shaft is connected to an output end of the speed change mechanism. Also disclosed is an all-terrain vehicle. ## Claims ### Claim 1 An engine system, comprising: a housing, which is provided with an accommodating cavity; a crankshaft part, which is provided in the accommodating cavity and is configured to output first power, wherein an output end of the crankshaft part for outputting the first power extends out of the accommodating cavity; a first motor, which is located outside the accommodating cavity and provided on the housing, wherein the first motor comprises a first motor shaft, and the first motor shaft is connected to the output end of the crankshaft part to convert the first power into electric energy; a second motor, which is located outside the accommodating cavity and provided on the housing, wherein the second motor comprises a second motor shaft and is configured to output second power according to electric energy; a speed change mechanism, which is provided in the accommodating cavity and drivingly connected to the second motor shaft without connecting to the output end of the crankshaft part, and is configured to perform speed change processing on the second power to output third power; and a transmission shaft, which is provided in the accommodating cavity and connected to an output end of the speed change mechanism for outputting the third power, and is configured to output fourth power. ### Claim 2 (depends on 1) The engine system according to claim 1, wherein the first motor and the second motor are located on a same side of an axis of the transmission shaft, the first motor shaft and the second motor shaft are parallel to each other, and the second motor shaft and the first motor shaft are perpendicular to the transmission shaft. ### Claim 3 (depends on 2) The engine system according to claim 2, wherein the first motor and the second motor are located on one side of the axis of the transmission shaft, and the speed change mechanism is located on the other side of the axis of the transmission shaft. ### Claim 4 (depends on 1) The engine system according to claim 1, wherein the first motor and the second motor are located on a same side of an axis of the transmission shaft, the first motor shaft and the second motor shaft are perpendicular to each other, and the first motor shaft is perpendicular to the transmission shaft, and the second motor shaft is parallel to the transmission shaft. ### Claim 5 (depends on 4) The engine system according to claim 4, wherein the first motor, the second motor and the speed change mechanism are located on one side of the axis of the transmission shaft, and a counterweight of the crankshaft part is located on the other side of the axis of the transmission shaft. ### Claim 6 (depends on 1) The engine system according to claim 1, wherein the first motor is located on one side of an axis of the transmission shaft, the second motor is located on the other side of the axis of the transmission shaft, the first motor shaft and the second motor shaft are parallel to each other, and both the second motor shaft and the first motor shaft are perpendicular to the transmission shaft. ### Claim 7 (depends on 6) The engine system according to claim 6, wherein the first motor and the speed change mechanism are located on one side of the axis of the transmission shaft, and the second motor is located on the other side of the axis of the transmission shaft. ### Claim 8 (depends on 1) The engine system according to claim 1, wherein the first motor is located on one side of an axis of the transmission shaft, the second motor is located on the other side of the axis of the transmission shaft, the first motor shaft and the second motor shaft are perpendicular to each other, and the first motor shaft is perpendicular to the transmission shaft, and the second motor shaft is parallel to the transmission shaft. ### Claim 9 (depends on 8) The engine system according to claim 8, wherein the first motor is located on one side of the axis of the transmission shaft, and the second motor and the speed change mechanism are located on the other side of the axis of the transmission shaft. ### Claim 10 (depends on 1) An all-terrain vehicle, comprising the engine system according to claim 1, and further comprising: a vehicle body on which the engine system is provided; a front wheel, which is provided on a front side of the vehicle body; a rear wheel, which is provided on a rear side of the vehicle body; a first main transmission shaft, which is drivingly connected to one of both ends of the transmission shaft which are along an axis of the transmission shaft, to transmit the fourth power to the front wheel; a second main transmission shaft, which is drivingly connected to the other end of the both ends of the transmission shaft which are along the axis of the transmission shaft, to transmit the fourth power to the rear wheel. ### Claim 11 An engine system, comprising: an engine, which comprises a housing and a crankshaft part, wherein the housing is provided with an accommodating cavity, the crankshaft part is provided in the accommodating cavity and is configured to output first power, and an output end of the crankshaft part for outputting the first power extends out of the accommodating cavity; a first motor, which is located outside the accommodating cavity and provided on the housing, wherein the first motor comprises a first motor shaft, and the first motor shaft is connected to the output end of the crankshaft part to convert the first power into electric energy; a second motor, which is located outside the accommodating cavity and provided on the housing, wherein the second motor comprises a second motor shaft and is configured to output second power according to electric energy; a speed change mechanism, which is provided in the accommodating cavity and drivingly connected to the second motor shaft without connecting to the output end of the crankshaft part, and is configured to perform speed change processing on the second power to output third power; and a transmission shaft, which is provided in the accommodating cavity and connected to an output end of the speed change mechanism for outputting the third power, and is configured to output fourth power. ### Claim 12 (depends on 11) The engine system according to claim 11, wherein the first motor and the second motor are located on a same side of an axis of the transmission shaft, the first motor shaft and the second motor shaft are parallel to each other. ### Claim 13 (depends on 12) The engine system according to claim 12, wherein the first motor and the second motor are located on one side of the axis of the transmission shaft, and the speed change mechanism is located on the other side of the axis of the transmission shaft. ### Claim 14 (depends on 11) The engine system according to claim 11, wherein the second motor shaft and the first motor shaft are perpendicular to the transmission shaft. ### Claim 15 (depends on 11) The engine system according to claim 11, wherein the first motor and the second motor are located on a same side of an axis of the transmission shaft, the first motor shaft and the second motor shaft are perpendicular to each other, and the first motor shaft is perpendicular to the transmission shaft, and the second motor shaft is parallel to the transmission shaft. ### Claim 16 (depends on 15) The engine system according to claim 15, wherein the first motor, the second motor and the speed change mechanism are located on one side of the axis of the transmission shaft, and a counterweight of the crankshaft part is located on the other side of the axis of the transmission shaft. ### Claim 17 (depends on 11) The engine system according to claim 11, wherein the first motor is located on one side of an axis of the transmission shaft, the second motor is located on the other side of the axis of the transmission shaft, the first motor shaft and the second motor shaft are parallel to each other, and both the second motor shaft and the first motor shaft are perpendicular to the transmission shaft. ### Claim 18 (depends on 17) The engine system according to claim 17, wherein the first motor and the speed change mechanism are located on one side of the axis of the transmission shaft, and the second motor is located on the other side of the axis of the transmission shaft. ### Claim 19 (depends on 11) The engine system according to claim 11, wherein the first motor is located on one side of an axis of the transmission shaft, the second motor is located on the other side of the axis of the transmission shaft, the first motor shaft and the second motor shaft are perpendicular to each other, and the first motor shaft is perpendicular to the transmission shaft, and the second motor shaft is parallel to the transmission shaft. ### Claim 20 (depends on 19) The engine system according to claim 19, wherein the first motor is located on one side of the axis of the transmission shaft, and the second motor and the speed change mechanism are located on the other side of the axis of the transmission shaft.