Dual-Brake Vehicle Chassis Layout for Autonomous Testing
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Solution Overview
Problem
Existing automatic driving vehicles require comprehensive testing before leaving the factory to ensure reliability, but existing test methods are limited in scope and effectiveness.
Innovation Solution
A vehicle chassis design that includes a specific arrangement of a steering system, electrical system, driving system, and two brake systems, with communicative connections, allowing for separate control and compact integration, facilitating miniaturization and expansion of application scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single-brake system is used in automatic driving vehicles, then the device complexity is reduced, but the brake performance and reliability are insufficient for comprehensive testing scenarios
Solution Approach 1:
The brake system is divided into two independent brake systems (first brake system and second brake system) with separate mounting sites on the chassis support. Each brake system can be independently controlled and tested, allowing comprehensive brake performance evaluation while maintaining modular complexity that doesn't overwhelm the overall system architecture.
Solution Approach 2:
The electrical system serves as an intermediary that communicatively connects both brake systems to the control unit. This intermediary structure allows centralized control and coordination of the two brake systems, managing the complexity through a unified communication interface while enabling independent brake operation for enhanced reliability and testing capabilities.
2Volume of moving object
If multiple systems (steering, electrical, driving, brake systems) are integrated in a compact chassis, then the vehicle achieves miniaturization and expanded application scenarios, but the arrangement complexity increases
Solution Approach 1:
The chassis support is segmented into multiple distinct mounting sites arranged in a specific sequence along the length direction: steering system mounting site, first brake system mounting site, electrical system mounting site, second brake system mounting site, and driving system mounting site. This segmentation allows each system to be independently positioned and managed, reducing arrangement complexity while achieving compact integration.
Solution Approach 2:
The systems are arranged linearly along the length direction of the chassis, creating a one-dimensional organized structure. This dimensional arrangement simplifies the spatial configuration of multiple systems, making the compact chassis design more manageable while maintaining all necessary system integrations for miniaturization and expanded applications.
3Adaptability or versatility
If comprehensive testing capabilities are enabled through dual brake systems and multiple mounting sites, then the versatility for automatic driving testing is improved, but the manufacturing complexity increases
Solution Approach 1:
The chassis support incorporates five distinct mounting sites arranged in a standardized sequence, allowing systems to be independently mounted and assembled. This segmentation enables modular manufacturing where each system can be prepared separately and then integrated, reducing overall manufacturing complexity while maintaining comprehensive testing capabilities through the dual brake system and multiple system integrations.
Data Source
AI summary
Provided are a vehicle chassis and a vehicle, which are related to a field of vehicle technology, in particular to fields of automatic driving technology and driving test technology. The vehicle chassis includes: a chassis support, a steering system, an electrical system, a driving system, and two brake systems. The chassis support is provided with a steering system mounting site, an electrical system mounting site, a driving system mounting site, and two brake system mounting sites; which are arranged in sequence along a length direction of the vehicle chassis. A first brake system mounting site is disposed between the steering system mounting site and the electrical system mounting site; and a second brake system mounting site is disposed between the driving system mounting site and the electrical system mounting site. The two brake systems, the driving system and the steering system are communicatively connected to the electrical system.