Presentation on theme: "1 Basis: HESHBON 2009-10-20 update: RR 2010-07-01 HESHBON HA-710 Wheel Alignment System Fahrwerksvermessungs-System Service Manual Service-Handbuch (Ver.1.0."— Presentation transcript:
1 Basis: HESHBON update: RR HESHBON HA-710 Wheel Alignment System Fahrwerksvermessungs-System Service Manual Service-Handbuch (Ver.1.0 RR)
2 Index Contents How to test the measurement heads3 HOW TO CALIBRATE MEASUREMENT HEADS6 - Preparation of the calibration - User calibration procedure Assign the ID to the measurement heads13 Bluetooth Driver installation14 Bluetooth pairing diagnosis16 Associate the measuring heads with the PC18 Replacement of the PCB20
3 Description of equipment MEASURING HEAD The measuring head is the heart of the wheel alignment system: it contains the sensors that measure the alignment angles, processes the measurements and sends them to the PC, and receives the operator keyboard commands. a. Toe camera b. Alignment camera c. Logic board d. Bluetooth board (radio models) e. Accelerometer board f. Batteries (radio models) g. Counterweight (radio models) h. Counterweight (cable models) i. Toe beam arm j. Electronic housing k. Keyboard l. Handle m. Pin (of clamp) n. Plugs The front right measuring head is identical to the left rear one; the front left measuring head is identical to the rear right one, apart from the adhesives. The two pairs of measuring heads differ as regards the shape of the electronic housing and the plastic cover, both of which are specular. The electronic boards and cables inside the measuring heads are identical for all four. Exceptions to this are the calibration parameters and the position allocated to the measuring head (memorised in the logic board) and the Bluetooth address (radio models only, memorised in the Bluetooth board)
4 A measuring head can be replaced in a set of other measuring heads without problems of internal electronics compatibility. In this case, the measuring head should be calibrated, even though this is not strictly necessary. Assembly precautions: Take care not to crush or bend the delicate keypad connector Before connecting or disconnecting the Bluetooth board to or from the logic board, disconnect the battery in order to avoid voltage surges. Correctly center the connection between Bluetooth and logic boards! Danger of damages to the logic board. Measurements Each measuring head contains 4 sensors, each of which measures a different angle: Toe (T): horizontal angle between the axis of the measuring head (axis of the hole in which the clamp pin is inserted) and the beam of light emitted by the opposite measuring head along the track of the vehicle. The angle is positive if the beam of light points towards the vehicle. Alignment (A): horizontal angle between the perpendicular of the measuring head axis and the beam of light emitted by the opposite measuring head along the wheelbase. The angle is positive if the beam of light points towards the vehicle
5 Camber (C): angle between the direction of gravity (Z) and the vertical axis of the measuring head; positive if the wheel falls towards the measuring head. Level (L): angle between the horizontal plane and the direction of the toe beam arm of the measuring head; positive if the arm faces upwards. Toe and Alignment are measured by their respective cameras. Camber and Level are measured by the accelerometer board. Starting from these measurements, the software calculates the characteristic angles of the vehicle. As can be imagined, some measured angles are related to the characteristic angles of the vehicle: T has a similar value, but generally not identical, to the partial toe angle C is the camber L determines the level indicated on the keyboard LEDs A has not direct relationships but it is used together with other measurements to calculate the remaining characteristic angles of the vehicle.
6 Calibration parameters The calibration parameters are used to convert the electrical signals from the sensors into the corresponding angles. 8 parameters, the Zero and Gain of each of the 4 sensors of the measuring head, are stored in the logic board. The electrical signals of the sensors are converted using a proportional formula: Angle = Gain x Signal + Zero Zeros can be calibrated on site by means of a special calibration bar, while Gains can only be factory set. Gains are generally calibrated just once during in the lifetime of a sensor because, unless the components are faulty, Gains remain stable over time and, in any case, affect precision much less than the Zeros. In the following, "Calibrating the measuring heads" will have to be intended as calibrating the Zeros only, by mean of the calibration bar. Cameras There are two cameras: Toe: along the track Alignment : along the wheelbase The toe and alignment cameras are identical and are therefore interchangeable. Functions: Measuring toe (T) and alignment (A) angles Emitting light to allow the measurement of the adjacent camera to be measured
7 LED: emits light CCD: measures the angle The light emitted by the LEDs is infrared and therefore invisible. To check whether a LED is on or off, view it with a digital camera. Unlike the alignment camera, the toe camera has just one LED on. The second is not required as the track is shorter than the wheelbase. The camera reveals the brightness according to the angle of incidence, as shown in the Test page. The measured angle corresponds to the centre of gravity of the peak of the function. If there is more than one LED in the field of vision of the CCD, the function will have more than one peak. However, only the highest peak, generally corresponding to the nearest LED, is considered. Artificial light, daylight and infrared and non-infrared light emitters that are not the LEDs of the measuring heads (lamps,…) are filtered.
8 A non-faulty camera can give problems in the following rare cases: Direct sunlight blinds the CCD. Measurement not performed. Put the CCD in the shade. The camera beam is reflected by the bodywork of the vehicle or by a highly reflective metal panel. Brightness vs. angle has more than one peak. Cover the surface with a cloth. Two lifts are side by side so that the toe CCD frames the toe LED of the other lift. Brightness vs. angle has more than one peak. Separate the lifts with a panel. If a camera is replaced its Zero must be calibrated. Logic Board Functions of the logic board: Process sensor measurements Process commands and control the keyboard LEDs Receive power from the cables or battery (radio models) and distribute it to the other boards Communicate with the PC through the cables (cable models) or Bluetooth board (radio models) Memorise and update the firmware (measuring head management programme) Memorise the sensor calibration parameters Memorise the position allocated to the measuring head
9 Connections: a. Toe b. Alignment c. Accelerometer d. Bluetooth e. Battery (only used in the radio models) f. Power plugs and, only for cable versions, signal g. Keyboard h. Firmware update Other: i. Jumper for radio-cable switching (available from May 2006) j. Firmware version k. Board code The silver bands on the keyboard connector must face towards the outside of the board, as shown in the figure: When replacing the logic board: it is possible to maintain the existing cameras and the accelerometer board. (the Gains of the various cameras are sufficiently similar.) the Zeros must be calibrated and the position of the measuring head allocated. The sequence of replacing the logic board: Replace the main board then assign the appropriate ID with DIP switch. the Zeros must be calibrated with the calibration procedure.
10 Bluetooth board (radio models) Bluetooth board functions: Communicate with the PC via Bluetooth Manage battery recharging Store the Bluetooth address The Bluetooth address is a code which differentiates the board from the others or from other Bluetooth devices. To communicate with the PC, the Bluetooth address of the board must be saved to the PC. This operation is called associating the measuring head with the cabinet.
11 Accelerometer board Functions: measuring Camber (C) and Level (L) angles. When replacing the accelerometer board: The logic board must also be replaced with one that has stored the gains of the new accelerometer. The zero must be calibrated Battery (radio models) The battery of the radio models comprises 6 1.2V AA NiMh batteries in series; total capacity 1700 – 2000 mAh. The charge of new batteries lasts a whole day of full-time work. If the batteries are used correctly, their working life is 1 years. Due to normal physical phenomena, charging and usage times gradually decrease until they become too short for application. This undesired phenomena can be greatly accelerated by incorrect battery management. To achieve a working lifetime of 1 years: Fully recharge the batteries (at least 4 hours) and only when they are flat (red or yellow indicator on the monitor) Recharge the batteries at least once every 3 months
12 1. Press F12. Press F3 3. Press F5 or click Diagnosis button then the software will ask the password. 4. Then input the password service then press confirm. HOW TO TEST THE MEASUREMENT HEADS
13 Save the default gain Com. errorFirmware version Calibration check Open/save zero data Diagnosis Page Zero data The Diagnosis page contains various useful service functions. It does the following: - Checks sensor operation and performs troubleshooting - Calibrate the Zero of the measuring heads - Checks communication between the measuring heads and the PC - Reads the firmware version of the measuring heads - Reads the software versions
14 Calibration check : NOTE. The detector calibration may be automatically called for by the software, check therefore the CalCheck reference parameter by placing the detectors on the calibration bar. The CalCheck parameter must show a very low, less than 0,50 value. If the parameter value is higher, calibration is recommended. With the detectors mounted on the Calibration bar or the vehicle, the values shown on the page shall always be as close as possible to zero. - Save default gain : Save the default gain to each sensor heads - Open zero data : use this when check the zero data - Save zero data : use this when save the zero data - Firmware version : It means the current firmware version. - Zero data : It means the saved zero data in the each sensor head. - Comm error : It means how many error occurs.
15 1. Press F12. Press F3 3. Press F6 or click Calibration button then the software will ask the password. 4. Then input the password service then press confirm. 5. Press F6 or click Next button then the following calibration screen appears. HOW TO CALIBRATE MEASUREMENT HEADS
16 For radio models, in this and the following phases, check that the two measurement heads are not disturbed by the infrared sources of the other two measurement heads. 1. The first screen requires the calibration bar to be positioned and leveled longitudinally (using the spirit level provided) by adjusting the feet. 2. Install the two front measurement heads on the calibration tool as indicated on the screen 3. Level the two measurement heads by positioning the supplied level on the arm of the measurement heads and then tighten the knobs fully to lock the heads in place 4. Move on the next step by pressing F6 key. Preparation the Calibration
17 Step 1 : calibrate the toe, level of the Front-left, right sensors User calibration Procedure 1. Insert the pins provided into the bar lengthways. 2. Position the front left and front right sensors (see small box, bottom left) on the bar as shown in the diagram. 3. Level the two measurement heads by positioning the supplied level on the arm of the measurement heads and then tighten the knobs fully to lock the heads in place To improve level precision, position the level as close as possible to the large black plastic part. 4. Continue by pressing the key to save the calibration data: the new zero values will be saved for: toe, level and camber of relevant sensors. 5. Press and proceed with the phase described in the next chapter
18 Step 2 : calibrate the toe, level of the rear-left, right sensors 1.Remove the two front measurement heads. 2.Install the rear left and rear right sensors (see small box, bottom left) on the bar as shown in the diagram. 3. Level the two measurement heads by positioning the supplied level on the arm of the measurement heads and then tighten the knobs fully to lock the heads in place To improve level precision, position the level as close as possible to the large black plastic part. 4. Continue by pressing the key to save the calibration data: the new zero values will be saved for: toe, level and camber of relevant sensors. 5. Press and proceed with the phase described in the next chapter
19 Step 3 : calibrate the alignment of the front-left, rear-left sensors 1.Remove the two rear measurement heads. 2.Insert the pins into the holes on the flat surface, setting the crowns of the pins flush against the flat surfaces. The tool appears as indicated in the following figures 4. Install the two measurement heads(front-left, rear-left) on the right side as indicated on the screen (Bottom right) 5. Level the two measurement heads with the aid of the level supplied or displaying the central green led on the measurement head keypad. 6. Continue by pressing the key to save the calibration data: the new zero values will be saved for: alignment of relevant sensors. 7. Press and proceed with the phase described in the next chapter
20 Step 4 : calibrate the alignment of the front-right, rear-right sensors 1.Remove two measurement heads on the left side. 2. Install the two measurement heads on the right side as indicated on the screen (Bottom right) 3. Level the two measurement heads with the aid of the level supplied or displaying the central green led on the measurement head keypad. 4. Continue by pressing the key to save the calibration data: the new zero values will be saved for: alignment of relevant sensors. 5. Press to complete all calibration procedures.
21 After all calibration job, we will see the above screen. You can print out the all calibration data with before and after for the comparison. Complete whole procedure by pressing.
22 Assign the ID to the measurement heads 1.After replacing the logic board or the entire measuring head, you should assign the appropriate ID to the logic board as following. 2. Determine ID according to the following table and set the DIP switch on the PCB board. FLFRBLBR 2ON OFF 1ONOFFONOFF
23 1. Insert CD and install Bluetooth Driver & Software. 2. After finishing installation, click on mouse(Right) at the bottom of your windows side bar. Select Bluetooth Configuration. 3. Select Client Application Tab. Press Add Com port button. Bluetooth Driver installation
24 4. Then press OK button to create the new port. 5. Once all procedures are completed, make sure that four serial port were created on the list box as the below screen.
25 Bluetooth pairing diagnosis Double click My Bluetooth Place icon Double click 'Find Bluetooth Devices' icon.
26 This mark means that the bluetooth is paired correctly. If there is a problem, you must pair again.
27 1. Start HA-710 application then check the message COM:X(Bluetooths) 2. Press F11 key to move on the bluetooth configuration screen. 3. Switch on the four measuring heads to memorise and switch off all other measuring heads or Bluetooth devices. 4. Press Search button and wait. After a few seconds, the left-top box shows the name of the measuring heads and any other reachable Bluetooth devices. If you already have any installed Bluetooth devices, remove all the devices by pressing RemoveAll button. Associate the measuring heads with the PC
28 7. Press Register button to register Bluetooth devices to be selected. 8. If all the devices are registered successfully, the items in the list box are like as follows. 5. Select sensor module which name is HSB_ALIGNER or BT_MODULE and add that to the selected list box pressing >> button. If not all the measuring heads are found, make sure they are switched on and press RemoceAll button then press search button once again. If other measuring heads are found, switch them off and press RemoceAll button then press search button once again. 6. Press Port Map button to map the serial port. If the message doesnt appear, repeat the above steps once again.
29 Replacement of the PCB Load calibration data (Sensor PC) At the factory, the default calibration data is stored in the C:\Aligner\Zero folder. There are three buttons on this screen,DEFAULT, OPEN, SAVE. Each button will call the different calibration data from the PC. The function is as following. 1. DEFAULT - Call the calibration data of the factory setting to this screen. You will see the default values in red color. 2. OPEN - Call the calibration data which has been already stored before. You can select on the above dialogue box. 3. SAVE - Call the calibration data from all four measuring heads then save these data on PC. Press SAVE button on the calibration page, then the calibration data will be saved as a file which name is followed the date. For example, if today is March 29 th, 2008, then the file name will be 2008_0329.dat automatically. After uploading the above calibration data, you can download this data to the PCB board. F9 key (SAVE_ZERO) will write zero calibration data to the main logic board on each four measuring heads. F11 key(SAVE_GAIN_ALL) will write gain calibration data to the main logic board on each four measuring heads.