# US 7,608,014 B2 · Deceleration control device for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,014 B2 - Document ID: US7608014B2 - Status: Granted - Kind: B2 - Application number: 11/577,402 - Filed: 2005-08-03 - Published: 2007-12-13 - Granted: 2009-10-27 - Earliest claimed: 2004-10-18 - Assignees: Toyota Jidosha Kabushiki Kaisha - Inventors: Yasushi Kobiki; Yoshiharu Harada; Motoaki Kamimura - Web page: https://patentgrep.com/patent/US7608014B2 ## CPC - B60W 30/18136: {Engine braking} - B60T 7/12: for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} - B60W 10/06: including control of combustion engines - B60W 10/115: with planetary gears - B60W 10/184: with wheel brakes - B60W 10/196: acting within the driveline, e.g. retarders - F16H 61/21: Providing engine brake control - 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 - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - F16H: GEARING ## Abstract A deceleration control device for a vehicle including an automatic transmission capable of changing the gear ratio by a shift operation of a driver. The control device controls the load of a brake actuator or engine so that the vehicle is decelerated, when the driver performs a shift operation, under conditions that it is determined that the driver has the intention to decelerate and the automatic transmission is not downshifted. ## Claims ### Claim 1 A control device for a vehicle equipped with an automatic transmission capable of changing a shift range by shift operation of a driver, comprising: a brake unit for applying a braking force to said vehicle; a judgment unit for judging whether or not shifting is effected according to the shift operation of said driver; a determination unit for determining whether or not said driver has an intention to decelerate said vehicle; and a control unit for controlling said brake unit so that said vehicle is decelerated when the shift operation of said driver is performed, only under the conditions that it is determined that said driver has the intention to decelerate said vehicle and that it is judged that shifting is not effected according to the shift operation of said driver. ### Claim 2 (depends on 1) The control device for the vehicle according to claim 1, wherein said brake unit applies the braking force to said vehicle by suppressing wheel rotation of said vehicle by a frictional force. ### Claim 3 (depends on 1) The control device for the vehicle according to claim 1, wherein said brake unit applies the braking force to said vehicle by increasing a load of a driving source of said vehicle. ### Claim 4 (depends on 1) The control device for the vehicle according to claim 1, wherein said determination unit determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver. ### Claim 5 (depends on 2) The control device for the vehicle according to claim 2, wherein said determination unit determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver. ### Claim 6 (depends on 3) The control device for the vehicle according to claim 3, wherein said determination unit determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver. ### Claim 7 A control device for a vehicle equipped with an automatic transmission capable of changing a shift range by shift operation of a driver, comprising: brake means for applying a braking force to said vehicle; judgment means for judging whether or not shifting is effected according to the shift operation of said driver; determination means for determining whether or not said driver has an intention to decelerate said vehicle; and control means for controlling said brake means so that said vehicle is decelerated when the shift operation of said driver is performed, only under the conditions that it is determined that said driver has the intention to decelerate said vehicle and that it is judged that shifting is not effected according to the shift operation of said driver. ### Claim 8 (depends on 7) The control device for the vehicle according to claim 7, wherein said brake means applies the braking force to said vehicle by suppressing wheel rotation of said vehicle by a frictional force. ### Claim 9 (depends on 7) The control device for the vehicle according to claim 7, wherein said brake means applies the braking force to said vehicle by increasing a load of a driving source of said vehicle. ### Claim 10 (depends on 7) The control device for the vehicle according to claim 7, wherein said determination means determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver. ### Claim 11 (depends on 8) The control device for the vehicle according to claim 8, wherein said determination means determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver. ### Claim 12 (depends on 9) The control device for the vehicle according to claim 9, wherein said determination means determines whether or not said driver has the intention to decelerate said vehicle based on operation of an accelerator pedal by said driver.