# US 11,440,534 B2 · 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 11,440,534 B2 - Document ID: US11440534B2 - Status: Granted - Kind: B2 - Application number: 17/120,854 - Filed: 2020-12-14 - Published: 2021-06-24 - Granted: 2022-09-13 - Earliest claimed: 2019-12-20 - Assignees: Honda Motor Co., Ltd. - Applicants: Honda Motor Co., Ltd. - Inventors: Mamiko Inoue; Kentaro Shiraki; Tatsuya Ishikawa - Web page: https://patentgrep.com/patent/US11440534B2 ## CPC - B60K 6/445: Differential gearing distribution type - B60W 20/40: Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)} - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 20/11: using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance {(utilising navigation and traffic information in the control strategy B60W20/12)} - B60W 20/15: Control strategies specially adapted for achieving a particular effect - B60W 20/17: for noise reduction - B60W 20/20: Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration - B60W 30/1884: {Avoiding stall or overspeed of the engine} - B60W 2050/0096: {Control during transition between modes} - B60W 2510/0638: Engine speed - B60W 2710/0644: Engine speed - B60W 2710/0661: Speed change rate - 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 - 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 ## Abstract A control device of a vehicle configured to travel on a plurality of travel modes includes an internal combustion engine control unit and a travel mode control unit. When a difference between a rotation speed of an internal combustion at a time when a transition condition is satisfied and a predicted rotation speed is equal to or larger than a threshold value, the internal combustion engine control unit performs rotation speed control such that the rotation speed of the internal combustion engine approaches the predicted rotation speed, and the travel mode control unit shifts a travel mode to a second travel mode after the rotation speed control of the internal combustion engine control unit is completed. The rotation speed control is control in which the rotation speed is changed in a plurality of stages so as to approach the predicted rotation speed. ## Claims ### Claim 1 A control device of a vehicle configured to travel on a plurality of travel modes including: a first travel mode in which in response to supply of electric power generated by a generator, power output by an electric motor is transmitted to a driving wheel to drive the vehicle, the generator generating the electric power by using power of an internal combustion engine, and a second travel mode in which power of the internal combustion engine is transmitted to the driving wheel to drive the vehicle, the control device comprising: a travel mode control unit configured to set, based on a traveling state of the vehicle, any travel mode among the plurality of travel modes as a travel mode in which the vehicle travels; a predicted rotation speed acquisition unit configured to acquire, when a transition condition to the second travel mode is satisfied based on the traveling state of the vehicle that is travelling in the first travel mode, a predicted rotation speed of the internal combustion engine when the travel mode is shifted to the second travel mode at a time when the transition condition is satisfied, and an internal combustion engine control unit that controls the internal combustion engine, wherein when a difference between a rotation speed of the internal combustion at a time when the transition condition is satisfied and the predicted rotation speed acquired by the predicted rotation speed acquisition unit is equal to or larger than a threshold value, the internal combustion engine control unit performs rotation speed control such that the rotation speed of the internal combustion engine approaches the predicted rotation speed, when the difference between the rotation speed of the internal combustion engine and the predicted rotation speed at a time when the transition condition is satisfied is equal to or larger than the threshold value, the travel mode control unit shifts the travel mode to the second travel mode after the rotation speed control of the internal combustion engine control unit is completed, and the rotation speed control is control in which the rotation speed of the internal combustion engine is changed in a plurality of stages so as to approach the predicted rotation speed. ### Claim 2 (depends on 1) The control device of a vehicle according to claim 1, wherein the rotation speed control is control in which in a first stage among the plurality of stages, the rotation speed of the internal combustion engine is changed by only an allowable upper limit value to approach the predicted rotation speed. ### Claim 3 (depends on 2) The control device of a vehicle according to claim 2, wherein the rotation speed control is control in which in a second stage and subsequent stages among the plurality of stages, the rotation speed of the internal combustion engine is changed in a predetermined rate of change to gradually approach the predicted rotation speed.