Subsystem selection in an armoured vehicle: power pack, suspension and driveline

An armoured vehicle is not the sum of individually well-chosen parts. The power pack, driveline, suspension and hull determine one another’s load, weight and heat. A change in one subsystem means the others must be recalculated.

1. Start with the weight

Once the protection level, equipment and payload are set, the vehicle weight roughly emerges. The power pack, suspension and driveline are sized for this weight, not the other way round. Underestimating the weight at the start of a project is one of the mistakes that lead to the most expensive corrections later.

2. Power pack: power alone is not enough

• Power relative to weight determines acceleration and gradient performance.
• Cooling and air intake are a separate design topic inside the armoured hull; they become critical in hot climates and dusty environments.
• Fuel type and electric or hybrid options affect mission requirements such as quiet operation and thermal signature.

3. Suspension: consider terrain, speed and mine protection together

Sprung and unsprung (rigid) structures stand out in different situations. A sprung structure can increase speed and ride comfort off-road. A rigid structure offers a simpler solution that needs less maintenance. The choice depends on where and at what speed the vehicle will operate and on how sensitive the crew or payload is to shock. Suspension attachment points must be considered together with the underbody protection of the hull.

4. Wheeled or tracked?

Wheeled vehicles stand out in road speed and range; tracked vehicles stand out in mud, snow and very rough terrain. A track system is heavier to maintain and carries more weight. The right choice comes from evaluating the mission profile and the user’s logistics infrastructure together.

5. Integration must be considered at the start, not at the end

If the electrical layout, cooling, communications, weapon or sensor systems, crew ergonomics and maintenance access are not considered at the start of the design, space and weight problems appear later. That is why subsystem design should be carried out with an engineering approach that sees the vehicle as a whole.

What does YDD Technology provide?

We design all the subsystems of the vehicle, from the power pack and armoured hull to the crew compartment and special mechanisms, and verify the fit between them with engineering analyses. If you need a single subsystem we can focus on it; if you need the whole vehicle, on the whole.

Published: 2026-10-26