Vehicle Seat Position Control Within Airbag Protection Range

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Solution Overview

Problem

Existing vehicle seats lack restrictions during adjustment, posing safety risks to passengers, especially during high-speed driving, rapid acceleration/deceleration, or steep slopes.

Innovation Solution

A vehicle seat controller that acquires the seat's state and adjusts its position within the safety system's protection range, considering factors like speed, acceleration, and inclination to ensure passenger safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the vehicle seat is provided with a relatively long adjustment range to facilitate passenger use, then the ease of operation is improved, but the safety of the passenger deteriorates when the seat is adjusted outside the safety protection range

Engineering Contradiction:
Improveease of operationVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting the adjustable range of the vehicle seat based on vehicle operating parameters (speed, acceleration, inclination). When the vehicle is in safe operating conditions, the seat allows full adjustment range. When hazardous conditions are detected (high speed, rapid acceleration/deceleration, steep slopes), the system restricts the seat adjustment to within the safety protection range, thereby resolving the contradiction between ease of operation and safety

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback control by continuously monitoring vehicle operating parameters (speed, acceleration, inclination) and using this information to control the seat adjustment mechanism. The controller receives feedback from sensors about vehicle state and adjusts the permitted seat movement range accordingly, ensuring the seat remains within safe boundaries while allowing maximum flexibility when conditions permit

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the vehicle seat allows free adjustment during high-speed driving or rapid acceleration, then the ease of operation is improved, but the safety of the passenger deteriorates due to loss of control during adjustment

Engineering Contradiction:
Improveease of operationVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system changes the operational parameters of the seat adjustment mechanism based on vehicle dynamic conditions. During high-speed driving or rapid acceleration, the controller detects these parameters and restricts the seat adjustment range to prevent loss of control. This dynamic parameter adjustment resolves the contradiction by allowing free adjustment only when vehicle parameters indicate safe operating conditions

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3725585B1Method and system for controlling vehicle seat
Publication Date: 2025.11.05 NIO ANHUI HLDG CO LTD
  • EP3725585B1 patent drawingFigure 1~2
  • EP3725585B1 patent drawingFigure 3~4
  • EP3725585B1 patent drawingFigure 5

AI summary

Disclosed are a method and system for controlling a vehicle seat, an application, and a computer device. The method for controlling a vehicle seat comprises: acquiring a state of the vehicle seat; and selectively adjusting the position of the vehicle seat according to the state of the vehicle seat. Since a safety system can effectively protect the safety of a passenger only when the vehicle seat is adjusted within a protection range of the safety system, a vehicle seat controller must ensure that the vehicle seat is adjusted within the protection range of the safety system. Moreover, if an operating state of a vehicle is likely to cause the vehicle seat to lose control during an adjustment process, the vehicle seat also cannot be adjusted.