# US 12,005,875 B2 · Vehicle brake-by-wire control system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,875 B2 - Document ID: US12005875B2 - Status: Granted - Kind: B2 - Application number: 17/988,394 - Filed: 2022-11-16 - Published: 2024-05-16 - Granted: 2024-06-11 - Earliest claimed: 2022-11-16 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Harold John Felch; Thomas Svensson; Harbind S Chahal; Roberto Villegas Muriel - Web page: https://patentgrep.com/patent/US12005875B2 ## CPC - B60T 7/042: {by electrical means, e.g. using travel or force sensors} - B60L 7/14: for vehicles propelled by AC motors - B60L 2260/22: Standstill, e.g. zero speed - B60T 2260/09: Complex systems; Conjoint control of two or more vehicle active control systems - B60T 2270/82: Brake-by-Wire, EHB - B60W 2540/10: Accelerator pedal position - B60W 2710/18: Braking system - 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 - 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 - 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 vehicle includes a brake-by-wire system having a brake pedal and a first sensor configured to output a signal indicative of a position of the brake pedal. A controller is in communication with the sensor and is programmed to enable and disable a one-pedal driving mode based on a user-selected setting. The controller is further programmed to, in response to the signal of the first sensor being valid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ## Claims ### Claim 1 A vehicle comprising: a brake-by-wire system including a brake pedal and a first sensor configured to output a signal indicative of a position of the brake pedal; and a controller in communication with the sensor, the controller being programmed to: enable and disable a one-pedal driving mode based on a user-selected setting, and in response to the signal of the first sensor being valid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 2 (depends on 1) The vehicle of claim 1, wherein the brake-by-wire system further includes a second sensor configured to output a second signal indicative of the position of the brake pedal, wherein the controller is further programmed to, in response to the second signal of the second sensor being invalid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 3 (depends on 1) The vehicle of claim 1, wherein the brake-by-wire system further includes a second sensor configured to output a second signal indicative of the position of the brake pedal, wherein the controller is further programmed to, in response to data from the first and second sensors differing beyond a threshold and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 4 (depends on 1) The vehicle of claim 1, wherein the brake-by-wire system further includes a second sensor configured to output a second signal indicative of the position of the brake pedal, wherein the controller is further programmed to, in response to both the signal of the first sensor and the second signal of the second sensor being invalid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 5 (depends on 1) The vehicle of claim 1, wherein the brake-by-wire system further includes a second sensor configured to output a second signal indicative of the position of the brake pedal, wherein the controller is further programmed to, in response to (i) the signals of the sensor and second sensor being valid, (ii) data from the first and second sensors differing beyond a threshold, and (iii) and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 6 (depends on 1) The vehicle of claim 1, wherein the brake-by-wire system further includes friction brakes. ### Claim 7 (depends on 1) The vehicle of claim 1 further comprising an accelerator pedal, wherein the controller is further programmed to, in response to being in the one-pedal driving mode, command braking torque to the brake-by-wire system based on a position of the accelerator pedal. ### Claim 8 (depends on 1) The vehicle of claim 1 further comprising an electric machine configured to power driven wheels. ### Claim 9 A vehicle comprising: a brake-by-wire system including a brake pedal, friction brakes, and first and second sensors each being configured to output data indicative of a position of the brake pedal; and a controller in communication with the first and second sensors, the controller being programmed to: enable and disable a one-pedal driving mode based on a user-selected setting, and in response to the data from the first and second sensors differing beyond a threshold and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting such that operation of the friction brakes is based on accelerator-pedal position. ### Claim 10 (depends on 9) The vehicle of claim 9, wherein the controller is further programmed to, in response to the data of the first sensor or the second sensor being invalid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 11 (depends on 9) The vehicle of claim 9, wherein the controller is further programmed to, in response to the data of both the first and second sensors being invalid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting. ### Claim 12 (depends on 9) The vehicle of claim 9 further comprising an accelerator pedal, wherein the controller is further programmed to, in response to being in the one-pedal driving mode, command braking torque to the brake-by-wire system based on a position of the accelerator pedal. ### Claim 13 (depends on 9) The vehicle of claim 9, wherein the controller is further programmed to, in response to the data from the first and second sensors being with the threshold and the one-pedal driving mode being disabled, continue operation in a two-pedal driving mode. ### Claim 14 (depends on 9) The vehicle of claim 9 further comprising an electric machine configured to power driven wheels. ### Claim 15 A method of operating a vehicle brake-by-wire system comprising: disabling a one-pedal driving mode based on a user-selected setting; and in response to a sensed condition and the one-pedal driving mode being disabled, enabling the one-pedal driving mode regardless of the user-selected setting. ### Claim 16 (depends on 15) The method of claim 15 further comprising: receiving data from a first brake pedal position sensor, wherein the sensed condition is that the data is invalid. ### Claim 17 (depends on 16) The method of claim 16 further comprising: receiving data for a second brake pedal position sensor; and in response to the data of the second sensor being invalid and the one-pedal driving mode being disabled, enabling the one-pedal driving mode regardless of the user-selected setting. ### Claim 18 (depends on 16) The method of claim 16 further comprising: receiving data from a second brake pedal position sensor; and in response to the data from the first and second sensors differing beyond a threshold and the one-pedal driving mode being disabled, enabling the one-pedal driving mode regardless of the user-selected setting. ### Claim 19 (depends on 16) The method of claim 16 further comprising: receiving data from a second brake pedal position sensor; and in response to (i) the data of the first and second sensors being valid, (ii) the data from the first and second sensors differing beyond a threshold, and (iii) and the one-pedal driving mode being disabled, enabling the one-pedal driving mode regardless of the user-selected setting. ### Claim 20 (depends on 15) The method of claim 15 further comprising: receiving data from an accelerator pedal position sensor; and in response to being in the one-pedal driving mode, commanding braking torque based on the data from the accelerator pedal position sensor.