Automated Roll Brake Test System Using Wireless ESC Control
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Solution Overview
Problem
Conventional roll and brake test systems rely on human drivers to operate steering, accelerator, and brake components, leading to quality deviations and increased costs due to human error and safety concerns, limiting the ability to perform certain tests.
Innovation Solution
A roll and brake test system and method that utilizes a control apparatus to transmit control signals wirelessly to a vehicle's Electronic Stability Control (ESC), Engine Management System (EMS), and other components, enabling automated testing of steering, acceleration, transmission, and braking without a human driver, using location sensors to maintain vehicle alignment and control signals based on speed profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a human driver operates the vehicle during testing, then the test can be performed with simple equipment, but quality deviations occur due to human error and increased personnel expenses
Solution Approach 1:
The vehicle is equipped with automated control systems (EMS, ESC, transmission control) that enable the vehicle to perform acceleration, deceleration, and steering operations autonomously during testing, eliminating the need for human drivers and ensuring consistent, repeatable test results
Solution Approach 2:
Manual mechanical operation by human drivers is replaced with electronic control systems that transmit control signals wirelessly to the vehicle's onboard systems, substituting human physical operation with automated electronic control to eliminate human error and improve reliability
2Reliability
If a human driver performs acceleration and braking operations, then the test procedure is simple to implement, but safety risks increase due to human involvement
Solution Approach 1:
The vehicle's onboard control systems (EMS for engine management, ESC for stability control) autonomously execute acceleration and braking operations based on pre-programmed test protocols, eliminating human drivers from the testing process and thereby removing safety risks associated with human involvement while maintaining operational simplicity through automated sequences
3Reliability
If automated control signals are transmitted wirelessly to the vehicle, then testing safety improves by eliminating human drivers, but device complexity increases due to additional control systems
Solution Approach 1:
The control apparatus integrates multiple functions into a single system: it transmits acceleration control signals to the EMS, deceleration control signals to the ESC, and coordinates with the transmission control system, thereby achieving comprehensive vehicle control through one multi-functional device that manages all testing operations without requiring separate control systems for each function
4Measurement precision
If location sensors are used to monitor vehicle position on the roll, then vehicle alignment control improves, but device complexity increases due to additional sensors
Solution Approach 1:
Location sensors mounted on both sides of the roll continuously measure the vehicle's lateral position, and this measurement information is fed back to the control apparatus, which automatically adjusts the vehicle's position by controlling steering or roll movement, creating a closed-loop system that maintains precise alignment without requiring complex manual intervention
Data Source
AI summary
A roll and brake test system and a method of controlling the same are disclosed. The roll and brake test system can automatically test a steering device, an accelerator, a transmission, and a brake of a vehicle. The roll and brake test system includes: a roll and brake apparatus for accommodating a vehicle on a roll; a management apparatus for controlling the roll and brake apparatus and for generating test information for testing the vehicle; and a control apparatus for controlling the vehicle according to the test information from the management apparatus.