Pumbaa Electric Bus Chassis with 9-Phase Motor from China Suppliers and Factory – CATL350 Electric Axle, Air Suspension
Powertrain parameters
| Rated/peak power | 195/350KW |
| Rated/peak torque | 2000/3500NM |
| Maximum speed | 3400r/min |
Product Advantages
Standardized, modular design
To meet the matching of various body bodies, with a large power system, to meet the power needs of various working conditions
Applications
Turkish BUS electric chassis
Electric chassis of American school buses
Electric Vehicle Chassis Design: Core Technologies and Development Trends
With growing environmental awareness, the electric vehicle (EV) industry is rapidly evolving. Unlike traditional internal combustion engine vehicles, EVs utilize clean energy sources such as electricity, with their core powertrain composed of the "three-electric systems" (battery, motor, and electronic control). Chassis design directly impacts vehicle safety and range performance.
As a critical structural component supporting key components, the chassis must prioritize battery safety. Current designs exhibit three key characteristics:
- Adoption of lightweight materials (e.g., TRIP steel) to reduce energy consumption;
- Optimized battery placement (mostly under the chassis) to balance space and safety;
- A significant trend toward integration, where skateboard chassis integrates drive, control, and battery systems into a standalone module, enhancing design flexibility.
Innovative directions focus on:
- Structural breakthroughs: Aluminum skateboard chassis enables decoupled body-chassis development, enhancing handling and maintenance convenience;
- Material upgrades: High-strength materials like TRIP steel reduce fuel consumption and emissions;
- Layout optimization: Hub motors reduce transmission losses, while gearless designs improve space utilization. Companies such as Tesla and BYD have achieved economies of scale through flat battery packs and unified architectures, though startups still face high-cost challenges.
Future development trends emphasize:
- Optimizing power transmission paths while maintaining the basic structure of traditional chassis;
- Rationalizing the spatial layout of battery packs;
- Enhancing system stability through mechatronic integration.
With technological breakthroughs in solid-state batteries and other areas, electric chassis will further evolve toward intelligence and integration, becoming the critical foundation defining EV performance.
Frequently Asked Questions
What are the core powertrain parameters of the electric chassis?
The powertrain has a rated/peak power of 195/350KW, a rated/peak torque of 2000/3500NM, and a maximum speed of 3400r/min.
What are the advantages of a standardized and modular chassis design?
A standardized, modular design allows the chassis to match various body types. Equipped with a large power system, it efficiently meets the specific power demands of diverse working conditions.
How does a skateboard chassis improve electric vehicle design?
A skateboard chassis integrates the drive, control, and battery systems into a standalone module. This allows for decoupled body-chassis development, improving design flexibility, handling, and maintenance convenience.
What materials are being used to optimize electric chassis weight?
Lightweight and high-strength materials, such as TRIP steel, are adopted in modern chassis designs to reduce energy consumption, fuel consumption, and emissions.
What are the future development trends for electric vehicle chassis?
Future trends focus on optimizing power transmission paths within traditional structures, rationalizing the spatial layout of battery packs, and enhancing overall system stability through mechatronic integration.