Four-Wheel Drive Robot Chassis

The four-wheel steering and four-wheel drive (4WS4WD) robot chassis adopts a modular architecture, with core components including the chassis frame, mounting components, drive mechanism, and wheels. Based on this, the chassis typically features independent drive and steering for all four wheels, supporting multiple steering modes (such as on-the-spot turning, zero-radius on-the-spot turning, diagonal driving mode, and parallel parking mode), enabling precise control and excellent off-road performance. It can also be equipped with various sensors and devices such as lidar and robotic arms, effectively addressing the challenges of unstructured terrain in scenarios such as industrial inspections, disaster rescue, agriculture, and transportation.

The four-wheel steering and four wheel drive (4WS4WD) robot chassis adopts a modular architecture, with core components including the chassis frame, mounting components, drive mechanism, and wheels. Based on this, the chassis typically features independent drive and steering for all four wheels, supporting multiple steering modes (such as on-the-spot turning, zero-radius on-the-spot turning, diagonal driving mode, and parallel parking mode), enabling precise control and excellent off-road performance. It can also be equipped with various sensors and devices such as lidar and robotic arms, effectively addressing the challenges of unstructured terrain in scenarios such as industrial inspections, disaster rescue, agriculture, and transportation.

Parameter Table

Type		Medium four-wheel drive robot platform
● Standard configuration ○ Optional configuration - Not available
Chassis Specifications	Energy type	Pure electric (lithium iron phosphate battery)
	LengthWidthHeight(mm)	32501670660
	Minimum ground clearance(mm)	160
	Minimum turning radius(m)	3.5
	Maximum fording depth(mm)	160
	Maximum obstacle clearance height(mm)	120
	Maximum climbing angle(%)	20
	Maximum speed(km/h)	60
	Curb weight(kg)	700
	Maximum payload(kg)	1000
Battery and Charging	Battery capacity (kWh)	16.1
	Range on empty (km)	130
	Slow charging time (hours)	6
Wireless Drive Parameters	Drive type	Four-wheel distributed drive
	Motor rated/peak power (kW)	4*4
	Motor rated/peak torque (Nm)	31/180
Smart Hardware Features	OTA remote updates	●
	Backend data monitoring system	●
	Remote start/stop	●
	Tire pressure monitoring	●
	Four-wheel speed detection	●
	Hill start assist/hill descent control	●
	Low speed alert	－
	Emergency stop button	●
	Independent front/rear touch bar emergency stop	－
	Remote control	●

The main components of a four-wheel drive chassis include the following:

Robot chassis frame: Serves as the supporting structure for the entire chassis, connecting and securing all parts, and withstanding dynamic loads.

Motors: Typically equipped with four independent motors (steering wheel and hub motors), each motor drives one wheel to achieve four-wheel drive and steering.

Motor drivers and controllers: Responsible for receiving commands, controlling motor operation, and achieving precise speed and steering control.

Wheels and tires: Four drive wheels support on-the-spot steering, zero-radius on-the-spot turning, diagonal movement mode, and parallel movement.

Sensors and auxiliary equipment: May include collision sensors, obstacle avoidance sensors, and lidar, used for environmental perception and control assistance.

Other components such as shock absorption modules and connectors, ensure chassis stability and shock absorption performance.

The four wheel drive robot chassis is suitable for indoor and outdoor applications, including:

The drive robot chassis offers high maneuverability, precise control, strong adaptability, and efficient path planning in indoor environments, making it particularly suitable for narrow, complex, or dynamically changing indoor scenarios:

Industrial plant inspection and transportation: Factory or warehouse environments often feature narrow corridors, oily or uneven floors, making them ideal for inspection tasks and material handling in factories or warehouses.

Robot chassis education and research: Research and educational environments require flexible testing of motion control and SLAM algorithms, making them ideal for experiments and teaching.

Indoor logistics and warehousing: Warehouse environments have narrow aisles and dense cargo, making this four wheel drive robot chassis highly suitable for flexible maneuvering and efficient path planning in confined spaces.

Outdoor environments present challenges such as unstructured terrain (muddy, rocky, steep slopes), dynamic obstacles, and harsh weather conditions:

Construction site operations: Used for material transportation or inspections. Construction sites feature unpaved roads, ditches, and temporary piles of building materials, creating a highly variable terrain. Traditional differential robot chassis are prone to getting stuck or losing steering capability in such environments.

Agricultural inspections and transportation: Suitable for complex farmland paths, ensuring efficient inspections and operations.

Energy industry applications: Such as inspections of power plants, oil fields, and other complex sites. Power plants/oil fields have flammable and explosive gases and high-temperature areas, making manual inspections risky.

Urban and industrial park patrols: With excellent off-road and steering capabilities, suitable for parks, industrial zones, and other variable terrains.

Light Off-Road Routes and Complex Terrain: Supports unpaved surfaces such as gravel and muddy terrain through a durable four-wheel drive system and excellent terrain adaptability.

This four wheel drive robot chassis features multiple movement modes (such as on-the-spot turning, sideways movement, and on-the-spot turning), enabling lateral movement and precise control in complex environments. It is equipped with shock absorption and independent suspension, enhancing ride smoothness and adaptability, making it particularly suitable for flexible operations across multiple industries and scenarios.