Testing Concept

A platform designed for measuring and evaluating vehicle parameters and components such as toe, camber, kingpin inclination, caster, thrust angle, and steering angle, with support for online adjustment of toe and camber.

Test Principle.

The four-wheel positioning sensor utilizes IYASAKA independently developed 3D laser sensing technology. By employing dynamic laser illumination matrix reconstruction, it generates tire surface 3D images at 10/20 Hz frequency. This enables accurate determination of front camber and caster angles through tire 3D modeling. The system can be configured with wheel bead height measurement units for vehicle body (wheel bead) height assessment. It also supports expandable functions including axle load measurement and steering angle monitoring.

Test Items

toe-in
extraversion
Main pin backward tilt/Main pin inward tilt (optional)
Rim and eyebrow height measurement system (optional)
Shaft weight measurement system (optional)
Rudder Angle measurement function (optional)

Test Model

Passenger cars and commercial vehicles

Product Features

More test functionality and higher test quality
High measurement accuracy, small repeatability error and stable operation
The new floating mode of the drum unit has the characteristics of small friction, smooth sliding and sensitivity, which can help improve the repeatability of test data. At the same time, it also has the function of aligning the vehicle when detecting and adjusting the vehicles front lamp
Iyasaka and Visicon are two laser options that adapt to a wide range of prices
The modular design is simple to arrange, easy to maintain, high cost performance, low maintenance cost and use cost
Image processing patent technology
Servo technology is used for centering and central torque feedback
The floating platform uses air suspension technology to minimize mechanical resistance and has higher accuracy

Scope of Supply

The four-wheel positioning equipment of WAT-2000 includes:

There are two sets of mainframe and vehicle driving channel, one set on each side (installed in the pit)
There are two sets of shaft adjustment devices, one for each left and right channel (installed in the pit)
There are 4 sets of floating plates driven by motor, one set for each wheel
There are 4 sets of vehicle center positioning device, one set for each wheel
One set of lighting device for the pit
One set of operating platform in the pit (adjustable height)
A set of cover plate, ladder, handrail and fence
3D laser sensor (Iyasaka/Visicon) 4 sets, one set per round (Visicon is more expensive)
Electrical control cabinet (including mainstream PLC and PC) 1 set (including circuit, button indicator light, UPS, display, servo control, etc.)
A set of steering wheel Angle tester and accessories (including instrument body/handheld home/charging base/calibrator)
Drivers assistant display 3 sets (2 sets in the pit, 1 set on the ground)
Drivers operation button box 1 set (model selection, start, end, reinspection, emergency stop, etc.)
Barcode scanner or RFID reader (option)
Static calibration frame
Dynamic car (optional)
Four-wheel positioning inspection software IAMachVision For WAT (for OEM online inspection)
Complete technical data, including Chinese and English version of data book (including electrical circuit diagram, operation manual, installation manual, etc.).

Basic Parameters

Allowable axle load (parameters can be customized according to requirements)		2000kg/axle
Allowable wheelbase (parameters can be customized according to requirements)		1940-2840/2300-3200/2600-3800, etc
Test speed (dynamic test)		About 4km/h
Roller dimensions
Front roller (parameters are customized according to requirements)	Internal width x external width （ between centers ）	1250×2150mm 1700mm
	Outside diameter x length	Ø186×450mm
Back roller (parameters are customized according to requirements)	Internal width x external width （ between centers ）	1250×2150mm 1700mm
	External diameter × face length	Ø186×450mm
	Shaft spacing	220mm
Rolling drum motor (passenger car)		0.75kW, 4P,4 units
Roller braking		Pneumatic mechanical brake, can be maintained
Rolling floating platform		New type of ball floating
Axis setting method		The rear roller section is mobile
Shaft offset moving motor		Servo motor, 0.75kW, 2 units
translational speed		Greater than 60mm/sec
Mobile precision		±1mm
way		Automatic movement, acceleration and deceleration servo control
To the middle roller
1) Static test mode		The vehicle is aligned
2) Dynamic test mode		Vehicle center and test deviation

Range and Precision

project	measurement range	accuracy	repeatability precision	remarks
toein	±8°	±1ˊ	±0.2ˊ	Must be checked
camber	±5°	±2ˊ	±0.4ˊ	Must be checked
Main pin backward tilt (measuring the inner and rear tilt angles of the main pin by an external sensor)	±15°	±0.2°	-	Sampling items
Main pin inclination (measuring the main pin inclination and backward inclination Angle by external sensor)	±12°	±4°	-	Sampling items
Steering wheel inclinometer	±1 5°	±0.1°
Improve the angular measurement accuracy		±2ˊ
steering locking angle	±45°	±1°	-	Sampling items
wheel load	≥1000kg	±2%	-	option

Cycle Time

order	Check the procedure	Inspection methods	time
1	The shaft is moved to the right position, the green indicator light of the display is on and the red indicator light is off, and the vehicle can enter the detection	Visual, operational
2	The vehicle enters the equipment, the model is read, and it is confirmed that the front axle of the vehicle is in place and the N gear is engaged	operate	4
3	Start the S/W, the red indicator light of the display is on and the green indicator light is off. Other vehicles are prohibited from entering	operate	3
4	Install the head level	operate	5
5	Start four-wheel positioning test	operate	1
6	Lift up and block the drum from rising	Equipment action	2
7	Roller starts, vehicle centering, measurement is completed, display measurement data	Equipment action	15
8	Move the light instrument to the detection position and turn on the low beam	Equipment action	15
9	Adjust front axle camber	check	35
10	Adjust front axle toe	check
11	Left low beam adjustment (optional)	check
12	Right low beam adjustment (optional)	check
13	Switch high beam (optional)	check
14	Left and right high beam measurement (optional)	check
15	The front beam and the light are adjusted. Remove the steering wheel level and put it back to its original position	operate	3
16	At the end of the test, the display shows the test results and confirms the four-wheel positioning data	visual	2
17	Lift to block the roller from returning to its original position	Equipment action	2
18	After the detection is completed, according to the display prompt, confirm the safety, and then drive out. The red light is off and the green light is on	Visual, operational	4
		amount to	76