Braking performance oriented multi-objective optimal design of electro-mechanical brake parameters

Area of Science:

• Automotive Engineering
• Control Systems
• Vehicle Dynamics

Background:

• Safe driving necessitates excellent braking performance, driving engineers to upgrade braking systems.
• Electro-mechanical brakes (EMBs) are emerging as a key technology for autonomous and connected vehicles.
• Existing research often optimizes for size and response, neglecting comprehensive braking performance.

Purpose of the Study:

• To propose a multi-objective optimal design for EMB parameters to enhance overall vehicle braking performance.
• To establish an optimal mathematical model for EMB parameter design based on relevant standards.

Main Methods:

• Defined objectives and constraints based on automotive standards and regulations.
• Established an optimal mathematical model with defined decision variables.
• Utilized a co-simulation platform for design and analysis of crucial structural and control parameters.

Main Results:

• Reduced maximum braking pressure response time by approximately 0.3 seconds.
• Shortened the stopping distance (SD) from 90 km/h by about 3.44 meters.
• Increased mean fully developed deceleration (MFDD) by 0.002 g and reduced lateral displacement (LD) by 0.037 m.

Conclusions:

• The multi-objective optimal design significantly enhances vehicle braking performance.
• Optimized EMB parameters lead to improved safety through reduced stopping distances and increased stability.
• This study provides a foundation for advanced EMB system development in future vehicles.