Integrated Chassis Control for Mountain Road Stability
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Solution Overview
Problem
Conventional integrated chassis control systems struggle to maintain vehicle stability on curved mountain roads with significant elevation differences, as they inadequately account for vehicle load changes during ascent and descent, affecting turning stability and controllability.
Innovation Solution
An integrated chassis control method that dynamically adjusts the distribution of front- and rear-roll damping force of the electronic control suspension (ECS) and torque of the all-wheel drive (AWD) based on real-time vehicle load changes, using navigation, camera, and sensor information to differentiate control strategies for uphill and downhill roads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional integrated chassis control is used to maintain vehicle stability, then turning stability and controllability can be maintained under normal road conditions, but vehicle driving stability deteriorates on curved mountain roads with significant elevation differences due to inadequate reflection of vehicle load changes
Solution Approach 1:
The control system dynamically adjusts damping force distribution and torque allocation based on real-time vehicle load changes detected during ascent and descent on mountain roads. The electronic control suspension and all-wheel drive system adapt their control parameters continuously to maintain optimal vehicle stability under varying gravitational conditions
Solution Approach 2:
The system changes control parameters including front- and rear-roll damping force distribution and AWD torque allocation based on detected vehicle load changes. By modifying these parameters in response to elevation changes and load transfer, the system maintains vehicle stability on curved mountain roads where conventional fixed-parameter control fails
2Adaptability or versatility
If the vehicle drives on curved mountain roads with great elevation differences, then the vehicle experiences wide vehicle load changes affecting stability, but conventional control methods cannot adequately respond to these dynamic load variations
Solution Approach 1:
The system continuously monitors vehicle load changes through sensors and uses this feedback to adjust the electronic control suspension and all-wheel drive parameters in real-time. This closed-loop control enables the system to respond dynamically to load variations caused by ascent and descent, maintaining turning stability that would otherwise be compromised on mountain roads
Data Source
AI summary
An integrated chassis control method to improve driving stability may include mountain-road integrated chassis control allowing, when a road on which a vehicle drives is checked to be the route of a mountain road by an integrated chassis controller, electronic control suspension (ECS) damping force and all wheel drive (AWD) driving force distribution to be controlled in a different manner according to uphill and downhill roads due to a difference of elevation of the mountain road.