How do you evaluate vehicle dynamics performance?

1 Objective tests

Objective tests are quantifiable measurements of the vehicle dynamics performance of a vehicle under specific conditions and scenarios. These tests are usually conducted in controlled environments, such as test tracks, laboratories, or simulators using specialized equipment. Examples of common objective tests include straight-line acceleration and braking tests, cornering tests, ride quality tests, and stability and control tests.

Straight-line acceleration and braking tests measure the time and distance required for a vehicle to accelerate from 0 to a certain speed or to brake from a certain speed to 0. They also measure the longitudinal force and power generated by the vehicle.

Cornering tests measure the lateral force, yaw rate, slip angle, and steering angle of a vehicle when it is driven around a circular or curved path at a constant speed or with varying speeds.

Ride quality tests measure the vertical displacement, acceleration, and frequency of the vehicle body and suspension when it is driven over bumps or uneven surfaces.

Stability and control tests measure the ability of a vehicle to maintain its desired trajectory and orientation when it is subjected to disturbances. They also measure the response of the vehicle's stability and control systems.

2 Subjective tests

Subjective tests are qualitative and personal assessments of the vehicle dynamics performance of a vehicle based on the perception and preference of the driver or passenger. These tests are usually conducted in real-world environments, such as public roads, race tracks, or off-road terrains, using human drivers, observers, or evaluators. Examples of common subjective tests include handling tests, comfort tests, and safety tests.

Handling tests assess the agility, responsiveness, balance, and feedback of a vehicle when it is driven through various maneuvers.

Comfort tests evaluate the smoothness, quietness, and ease of driving a vehicle over various road conditions.

Safety tests measure the confidence, security, and awareness of driving a vehicle in various traffic situations.

These tests also evaluate the fun and enjoyment of driving the vehicle, as well as its ergonomics, convenience, features, visibility, protection, and assistance.

3 Benchmarking methods

Benchmarking is an effective way to assess the vehicle dynamics performance of a vehicle in comparison to other vehicles or a predefined standard. It enables you to identify the strengths and weaknesses of a vehicle, as well as set goals and priorities for improvement.

Internal benchmarking compares the performance of a vehicle with that of other vehicles from the same manufacturer or brand, while external benchmarking compares the performance of a vehicle with that of other vehicles from different manufacturers or brands.

Best-in-class benchmarking evaluates the performance of a vehicle against the best-performing vehicle in a specific category or criterion, while target benchmarking compares the performance of a vehicle with that of a predefined or desired level or value.

Benchmarking can help you ensure consistency across different models or generations of vehicles, assess the competitiveness of a vehicle in the market, and define requirements and specifications for a new or improved vehicle.

4 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?