# US 10,501,083 B2 · Vehicle control device and vehicle control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,083 B2 - Document ID: US10501083B2 - Status: Granted - Kind: B2 - Application number: 15/553,239 - Filed: 2016-02-17 - Published: 2018-02-08 - Granted: 2019-12-10 - Earliest claimed: 2015-03-17 - Assignees: JATCO Ltd - Applicants: JATCO Ltd - Inventors: Yusuke Nakano; Yusuke Ota; Yoshimasa Nishihiro; Masayoshi Nakasaki; Yukifumi Ootsuka; Takuro Kawasumi; Shintaro Oshio - Web page: https://patentgrep.com/patent/US10501083B2 ## CPC - B60W 30/18136: {Engine braking} - B60W 10/02: including control of driveline clutches - B60W 10/06: including control of combustion engines - B60W 20/00: Control systems specially adapted for hybrid vehicles {(hybrid vehicle design, B60K6/00; electric vehicles B60L)} - B60W 30/18072: {Coasting} - F02N 11/00: Starting of engines by means of electric motors - F16D 48/00: External control of clutches - F16D 48/02: Control by fluid pressure - F16H 59/18: dependent on the position of the accelerator pedal - F16H 59/40: Output shaft speed - F16H 59/42: Input shaft speed - F16H 61/08: Timing control - F16H 61/662: with endless flexible members - F16H 61/686: with orbital gears - B60W 2030/18081: {With torque flow from driveshaft to engine, i.e. engine being driven by vehicle} - B60W 2030/1809: {Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral} - B60W 2510/101: Transmission neutral state - B60W 2520/105: Longitudinal acceleration - B60W 2540/10: Accelerator pedal position - B60W 2540/12: Brake pedal position - B60W 2540/16: Ratio selector position - B60W 2540/18: Steering angle - B60W 2710/021: Clutch engagement state - B60W 2710/0644: Engine speed - F02N 2200/0802: Transmission state, e.g. gear ratio or neutral state - F02N 2200/0808: Steering state, e.g. state of power assisted steering - F02N 2200/101: Accelerator pedal position - F02N 2200/102: Brake pedal position - F16D 2500/31426: Brake pedal position - F16D 2500/3144: Accelerator pedal position - F16D 2500/31466: Gear lever - F16D 2500/5085: Coasting - Y02T 10/60: Other road transportation technologies with climate change mitigation effect - 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 - F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - F16H: GEARING - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A vehicle control device includes control means for executing coasting control, in which a friction engaging element is disengaged and a rotation speed of a rotary shaft of a drive source is set at zero, when a shift range corresponds to a travel range and a coasting condition is established, and the control means executes the coasting control when the shift range is modified to a neutral range. ## Claims ### Claim 1 A vehicle control device for controlling a vehicle in which a friction engaging element is provided between a drive source and a drive wheel, comprising: a controller configured to execute coasting control to disengage the friction engaging element and set a rotation speed of a rotary shaft of the drive source at zero when a shift range corresponds to a travel range and a coasting condition is established, the shift range being selected by a driver, wherein the controller is configured to execute the coasting control when the shift range is modified to a neutral range, and execute the coasting control when the shift range corresponds to the neutral range and an accelerator pedal is depressed. ### Claim 2 (depends on 1) The vehicle control device according to claim 1, wherein the drive source is an engine, the vehicle comprises a brake device configured to generate braking force using negative pressure of the engine when a brake pedal is depressed, and the controller is configured to halt the coasting control when the shift range corresponds to the neutral range and the brake pedal is depressed. ### Claim 3 (depends on 2) The vehicle control device according to claim 2, wherein the controller is configured to disengage the friction engaging element during a deceleration in which an operation amount of the brake pedal is smaller than a predetermined amount, and engage the friction engaging element during a deceleration in which the operation amount of the brake pedal equals or exceeds the predetermined amount. ### Claim 4 (depends on 1) The vehicle control device according to claim 1, wherein the controller is configured to restart the drive source when the shift range is modified from the neutral range to the travel range. ### Claim 5 (depends on 4) The vehicle control device according to claim 4, wherein the controller is configured to engage the friction engaging element when the accelerator pedal is depressed, and disengage the friction engaging element when the accelerator pedal is not depressed. ### Claim 6 (depends on 5) The vehicle control device according to claim 5, wherein the controller is configured to execute the coasting control when the accelerator pedal is not depressed for a predetermined time. ### Claim 7 A vehicle control method for controlling a vehicle in which a friction engaging element is provided between a drive source and a drive wheel, comprising: executing coasting control to disengage the friction engaging element and set a rotation speed of a rotary shaft of the drive source at zero when a shift range corresponds to a travel range and a coasting condition is established, the shift range being selected by a driver; executing the coasting control when the shift range is modified to a neutral range; and executing the coasting control when the shift range corresponds to the neutral range and an accelerator pedal is depressed. ### Claim 8 A vehicle control device for controlling a vehicle in which a friction engaging element is provided between a drive source and a drive wheel, comprising: control means for executing coasting control to disengage the friction engaging element and set a rotation speed of a rotary shaft of the drive source at zero when a shift range corresponds to a travel range and a coasting condition is established, the shift range being selected by a driver, wherein the control means executes the coasting control when the shift range is modified to a neutral range, and executes the coasting control when the shift range corresponds to the neutral range and an accelerator pedal is depressed.