Lean Vehicle Stop Assistance Using Road Surface Feedback

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Solution Overview

Problem

Lean vehicles, such as motorcycles, face challenges in maintaining stability during stops due to varying road surfaces, which can lead to falls and reduced safety for both the rider and the vehicle.

Innovation Solution

A controller with an acquisition section that gathers road surface information and an execution section that executes a stop-assistance operation, including notification and posture stabilization, to help the rider maintain a stable stop posture by adjusting the vehicle's position and posture based on the road conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the rider manually supports the lean vehicle when stopping, then the rider can control the vehicle, but the rider and vehicle may fall down due to unstable stop posture on varying road surfaces

Engineering Contradiction:
ImprovesafetyVSAvoidstop posture stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The acquisition section acquires road surface information in advance before the stop-assistance operation is executed. This allows the system to prepare stabilization measures beforehand, ensuring the rider can stop safely even on varying road surfaces by predicting potential instability issues before they occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The execution section executes stop-assistance operations based on feedback from the acquisition section regarding road surface conditions. This closed-loop control allows the system to adjust the stop posture dynamically according to actual road surface information, maintaining stability and preventing falls.

Inventive Principle:
Principle #23Feedback

2Stability of the object's composition

If the execution section executes stop-assistance operation based on road surface information, then the stop posture is stabilized, but the device complexity increases due to acquisition and execution sections

Engineering Contradiction:
Improvestop posture stabilityVSAvoidcontroller structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The controller integrates multiple functions into a single device: the acquisition section gathers road surface information, the execution section implements stop-assistance operations, and both work together to stabilize stop posture. This multi-functional integration achieves the desired stability without proportionally increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4091895B1Controller and control method
Publication Date: 2024.10.23 ROBERT BOSCH GMBH
  • EP4091895B1 patent drawingFigure 1~2
  • EP4091895B1 patent drawingFigure 3
  • EP4091895B1 patent drawingFigure 4

AI summary

A controller (20) for an assistance system (10) configured to execute an assistance operation for a rider of a lean vehicle (1) includes an execution section (22) and an acquisition section (21). The execution section (22) operates the assistance system (10) to execute the assistance operation. The acquisition section (21) acquires a road surface information as information about a road surface (2) on which the lean vehicle (1) is traveling. The execution section (22) operates the assistance system (10) to execute, as the assistance operation, a stop-assistance operation based on the road surface information to assist the rider in stabilizing a stop posture of the rider.