# US 11,999,334 B2 · Brake system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,334 B2 - Document ID: US11999334B2 - Status: Granted - Kind: B2 - Application number: 17/532,262 - Filed: 2021-11-22 - Published: 2022-06-02 - Granted: 2024-06-04 - Earliest claimed: 2020-11-27 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Kazuki Takasuga - Web page: https://patentgrep.com/patent/US11999334B2 ## CPC - B60T 8/1708: {for lorries or tractor-trailer combinations} - B60T 8/1755: Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve (road vehicle drive control systems for control of driving stability otherwise than by controlling a particular sub-unit B60W30/02) - B60T 7/20: specially for trailers, e.g. in case of uncoupling of {or overrunning by} trailer (inertia-actuated overrun brakes B60T13/08) - B60T 8/1701: {Braking or traction control means specially adapted for particular types of vehicles (for vehicles having more than one drive axle B60T8/1769)} - B60T 8/28: responsive to deceleration {(B60T8/261, B60T8/262, B60T8/266 take precedence)} - B60T 8/323: {Systems specially adapted for tractor-trailer combinations} - B60T 13/662: {characterised by specified functions of the control system components} - B60T 13/665: {the systems being specially adapted for transferring two or more command signals, e.g. railway systems (B60T13/662 takes precedence)} - B60T 17/228: {for railway vehicles} - B60T 2210/20: Road shapes - B60T 2250/00: Monitoring, detecting, estimating vehicle conditions - B60T 2250/02: Vehicle mass - B60W 60/00256: {Delivery operations} - 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 - 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 brake system for a combination vehicle in which a plurality of vehicles are coupled in a line, including: a plurality of brake devices respectively provided for the plurality of vehicles; and a controller configured to control the plurality of brake devices, wherein the controller is configured to control a braking force applied to each of the plurality of vehicles based on a loaded weight or a weight of each of the plurality of vehicles. ## Claims ### Claim 1 A combination vehicle brake system comprising: a combination vehicle in which a plurality of vehicles are coupled in a line; and a brake system comprising: a plurality of brake devices respectively provided for the plurality of vehicles; and a controller configured to control the plurality of brake devices, wherein, when the combination vehicle is braked, the controller executes at least one of: a deceleration adjusting control in which a deceleration of one of any two of the plurality of vehicles that is located more rearward is not lower than a deceleration of the other of said any two of the plurality of vehicles that is located more frontward; and a braking-force generation-timing adjusting control in which a timing of generation of a braking force in one of any two of the plurality of vehicles that is located more frontward is not earlier than a timing of generation of a braking force in the other of said any two of the plurality of vehicles that is located more rearward, wherein the controller executes the deceleration adjusting control when a required overall deceleration is higher than a set deceleration and executes the braking-force generation-timing adjusting control when the required overall deceleration is not higher than the set deceleration, the required overall deceleration being a deceleration required for the combination vehicle as a whole. ### Claim 2 (depends on 1) The combination vehicle brake system according to claim 1, wherein the controller executes the deceleration adjusting control by controlling a braking force applied to each of the plurality of vehicles based on a loaded weight or a weight of each of the plurality of vehicles. ### Claim 3 (depends on 1) The combination vehicle brake system according to claim 1, wherein the controller executes the deceleration adjusting control such that a deceleration is higher for the vehicles located more rearward. ### Claim 4 (depends on 1) The combination vehicle brake system according to claim 1, wherein the controller executes the braking-force generation-timing adjusting control such that a timing of generation of a braking force is later for the vehicles located more frontward. ### Claim 5 (depends on 1) The combination vehicle brake system according to claim 1, wherein only a foremost vehicle among the plurality of vehicles of the combination vehicle includes a drive device, and each of the plurality of vehicles other than the foremost vehicle is capable of carrying objects and is towed by the foremost vehicle. ### Claim 6 (depends on 1) The combination vehicle brake system according to claim 1, wherein the combination vehicle is configured to travel along a set route by automated driving and to stop at one or more stop points set in the route. ### Claim 7 (depends on 1) The combination vehicle brake system according to claim 1, wherein the controller includes a plurality of in-vehicle units respectively provided for the plurality of vehicles so as to correspond to the plurality of brake devices, each of the plurality of in-vehicle units being configured to control a corresponding one of the plurality of brake devices. ### Claim 8 (depends on 7) The combination vehicle brake system according to claim 7, wherein the controller includes a central controller configured to communicate with each of the plurality of in-vehicle units and to centrally control the plurality of in-vehicle units. ### Claim 9 A combination vehicle brake system comprising: a combination vehicle in which a plurality of vehicles are coupled in a line; and a brake system comprising: a plurality of brake devices respectively provided for the plurality of vehicles; and a controller configured to control the plurality of brake devices, wherein, when the combination vehicle is braked, the controller executes at least one of: a deceleration adjusting control in which a deceleration of one of any two of the plurality of vehicles that is located more rearward is not lower than a deceleration of the other of said any two of the plurality of vehicles that is located more frontward; and a braking-force generation-timing adjusting control in which a timing of generation of a braking force in one of any two of the plurality of vehicles that is located more frontward is not earlier than a timing of generation of a braking force in the other of said any two of the plurality of vehicles that is located more rearward, wherein the controller executes the deceleration adjusting control when the combination vehicle is braked at a specific place and executes the braking-force generation-timing adjusting control when the combination vehicle is braked at a place other than the specific place. ### Claim 10 (depends on 9) The combination vehicle brake system according to claim 9, wherein the specific place is a downhill. ### Claim 11 (depends on 9) The combination vehicle brake system according to claim 9, wherein the controller executes the deceleration adjusting control by controlling a braking force applied to each of the plurality of vehicles based on a loaded weight or a weight of each of the plurality of vehicles. ### Claim 12 (depends on 9) The combination vehicle brake system according to claim 9, wherein the controller executes the deceleration adjusting control such that a deceleration is higher for the vehicles located more rearward. ### Claim 13 (depends on 9) The combination vehicle brake system according to claim 9, wherein the controller executes the braking-force generation-timing adjusting control such that a timing of generation of a braking force is later for the vehicles located more frontward. ### Claim 14 (depends on 9) The combination vehicle brake system according to claim 9, wherein only a foremost vehicle among the plurality of vehicles of the combination vehicle includes a drive device, and each of the plurality of vehicles other than the foremost vehicle is capable of carrying objects and is towed by the foremost vehicle. ### Claim 15 (depends on 9) The combination vehicle brake system according to claim 9, wherein the combination vehicle is configured to travel along a set route by automated driving and to stop at one or more stop points set in the route. ### Claim 16 (depends on 9) The combination vehicle brake system according to claim 9, wherein the controller includes a plurality of in-vehicle units respectively provided for the plurality of vehicles so as to correspond to the plurality of brake devices, each of the plurality of in-vehicle units being configured to control a corresponding one of the plurality of brake devices. ### Claim 17 (depends on 16) The combination vehicle brake system according to claim 16, wherein the controller includes a central controller configured to communicate with each of the plurality of in-vehicle units and to centrally control the plurality of in-vehicle units.