AMESim Vehicle System Dynamics Solution (2)

To design and validate the dynamic characteristics of a semi-active suspension system using a pressure valve control system. Including various components: pressure valve, check valve, hydraulic cylinder, pipeline. The characteristics of the overall system, the control of the electromagnetic motor and response. Each link can be modeled and simulated on the AMESim simulation platform.

Brake system solution:

In the design of the brake system, AMESim can model and simulate the hydraulic and pneumatic components and control schemes of the traditional brake system, ABS and ESP systems, and obtain a complete solution for vibration, noise and control strategies. The development cycle is greatly shortened on the basis of ensuring its practicability, stability and maintainability.

AMESim can do a good job in the structural design of the brake system and accurately analyze its braking performance and its impact on the vehicle. As a multi-disciplinary research platform, AMESim can complete the modeling of supercharger, main hydraulic cylinder, brake caliper and its circuit, and realize the simulation analysis of traditional braking system, ABS, ESP, TCS anti-skid device. Using AMESim, by analyzing the size, structure and working state of typical components in the brake circuit, the dynamic characteristics of the entire brake circuit can be obtained; the different loop structures are compared and analyzed, and the vehicle's braking performance is analyzed in combination with the vehicle model. And stability, can get the optimal system structure scheme. In addition, AMESim accurately analyzes the effects of the brake system structure on system vibration and noise. In short, AMESim can not only complete the design and development of new products, but also help solve the engineering problems of the brake system. For example, different hydraulic structures can be analyzed and compared, and the braking distance and vehicle stability can be analyzed in conjunction with the vehicle model.

AMESim uses the basic module method to model and simulate various types and structures of components. Analyze the dimensions and operating conditions of typical components in the brake circuit. The components in the system can be packaged and packaged based on the AMECustom secondary development platform.

Power steering system solution:

The design of the power steering system focuses on its functional design, controller design, and impact on the entire undercarriage. During the design process, it is necessary to establish reliable and accurate simulation models considering the stability, vibration characteristics and coupling analysis with the chassis system to realize the integration of hydraulic, electronically controlled hydraulic or electric power steering system (EPAS) to ensure the system's Practicality and coordination.

AMESim has accurate hydraulic piping models, pump models, friction models, electronic control unit modules, etc. These models integrate with Simulink to enable modeling and analysis of different types of steering systems (hydraulic, electronically controlled hydraulic and electric power steering). In addition, AMESim's linear analysis tools provide in-depth analysis of system vibration and noise, helping users get a good solution. In practical applications, AMESim can help solve problems such as cylinder climbing, trembling and pure hydraulic vibration.

For example, for a typical hydraulic power steering system, the system can be modeled and simulated based on the AMESim simulation platform according to the specific structure of the system.

In AMESim, according to the actual physical system, libraries and modules of different disciplines and different levels of complexity can be found to model the system.

Analysis of a specific system must be placed in the entire vehicle system to examine its various functions, static / dynamic characteristics, which has a clearer guiding significance for the design.

By analyzing the structural relationships and control strategies between the suspension, braking and power steering systems, these three systems can be integrated in AMESim to create an integrated simulation system. Based on the good versatility and interconnectivity of the AMESim model and the good integration with Simulink, it is possible to realize the co-simulation analysis between the three systems, study the relationship between the various systems, and the impact on the vehicle as a whole, and finally get a Coordinated vehicle dynamics system.

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