Invention Grant
- Patent Title: Trail driving engine start-stop judgment systems and methods
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Application No.: US17592636Application Date: 2022-02-04
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Publication No.: US11959448B2Publication Date: 2024-04-16
- Inventor: Thomas S. Hawley
- Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
- Applicant Address: US TX Plano
- Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
- Current Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
- Current Assignee Address: US TX Plano
- Agency: HAYNES AND BOONE, LLP
- Main IPC: F02N11/08
- IPC: F02N11/08

Abstract:
Systems and methods for determining whether to use engine start-stop systems during trail or other off-road driving are provided. Systems and methods may utilize various vehicle sensors (e.g., lidar, forward-facing cameras, accelerometers, sonar sensors, etc.) to detect when it is appropriate to command engine stop for fuel economy while driving off-road. To determine appropriateness, the vehicle may evaluate obstacles, ground clearance, and/or vehicle inclination. A method may include measuring accelerations/inclinations of a vehicle, comparing an acceleration value of each acceleration to an acceleration threshold, and disabling a start-stop system of the vehicle based on at least one acceleration value exceeding the acceleration threshold. A system may include an accelerometer configured to measure accelerations of a vehicle, and a logic device configured to compare an acceleration value of each acceleration to an acceleration threshold, and disable a start-stop system based on at least one acceleration value exceeding the acceleration threshold.
Public/Granted literature
- US20230250787A1 TRAIL DRIVING ENGINE START-STOP JUDGMENT SYSTEMS AND METHODS Public/Granted day:2023-08-10
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