SU-6 Suspension System
1.
Introduction of ECAS system
ECAS is air suspension control system for vehicle. It uses solenoid valve to control the action of air bellow per the
readings of sensor by means of electronic control unit (ECU).By working together with the switches, ECU can realize
some other controls except normal driving height. ECAS is of highly modularized design, which realizes functions
according to customers and the owners’ selection.
1.1 Benefits of ECAS
- Reducing air consumption. Take the low-floor city buses for example. Compared with conventional air suspension
system, the ECAS saves air consumption by about 20%
-The adoption of air intake (exhaust) ports with large section speeds up all the control processes.
-Easy installation. For the solenoid valve sets, every air bellow only requires one air pipe and another one leading to air
reservoir.
-Lifting and kneeling functions are available.
-The high flexibility of the system enables all kinds of kneeling function.
-Integrated with the concept of speed & safety, w/ failure memory and diagnosis functions.
1.2 Functions of ECAS system
ECAS function description
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Ride height control
This is the basic function of ECAS. By constantly comparing the height transmitted from the height sensor and the
target height preset in the ECU,ECAS senses the current height of vehicle all the time. When the height difference
exceeds the stated tolerance range, ECAS shall activate the solenoid, which then regulates the actual height to stated
value by increasing and decreasing the pressure of air bellow. Different from the conventional air suspension systems,
ECAS can control other preset heights besides the normal height. This means that regardless of the number of passengers
on and off, the preset height can remain unchanged. If the change of height is enormous,
the solenoid valve shall be
activated as a response to the rising speed and the distance to the normal traveling height, which slows down the
charging or discharging process of the air bellows when the normal height is nearly reached, thus avoiding overcharging.
All the control processes can be applied on the front and rear axles simultaneously.
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Height Ⅰ/Ⅱ
Normal height I is the normal traveling height set by vehicle manufacturer, which determines the ride comfort of
springs and the driving safety as well as meets lawful ride height.
Special height II is different from the normal height, and it shall take into consideration of special traveling
conditions. The special height II can be determined by ECU via setting parameter values. Normally, there is a rocker
switch installed near the instrument panel for driver to select the normal height I and special height II. Indicator of
6-6
Summary of Contents for XML6125CLE
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Page 17: ...General Instructions GI 6126J12 01 GI 14 1 16 ...
Page 18: ...General Instructions GI 6126J12 01 GI 15 1 17 ...
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Page 259: ...REPAIR MANUAL ZF DROP CENTER AXLE AV 132 II AV 132 II T 5871 214 102 en 5 1 ...
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Page 344: ...SU 4 Suspension System ECAS Electric control system WABCO Bus ECAS operation manual 6 4 ...
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Page 454: ...BR 50 Brake System BR 6125J93C 01 2 General schematic diagram of brake system 8 50 ...
Page 462: ...BR 58 Brake System BR 6125J93C 01 8 58 ...
Page 469: ...Break System BR 6125J93C 01 BR 65 8 65 ...
Page 470: ...BR 66 Brake System BR 6125J93C 01 8 66 ...
Page 471: ...Break System BR 6125J93C 01 BR 67 8 67 ...
Page 483: ...Break System BR 6125J93C 01 BR 79 8 79 ...
Page 485: ...Break System BR 6125J93C 01 BR 81 8 81 ...
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Page 511: ...2019 12 17 CATL Confidential Introduction of Power Battery System CATL AFS STTG ...
Page 513: ...2019 12 17 CATL Confidential Page 3 Composition of Battery System Chapter 1 ...
Page 516: ...2019 12 17 CATL Confidential Page 6 Introduction of Battery System Hardware Chapter 2 ...
Page 518: ...Appendix 1 MSD 2019 12 17 CATL Confidential Page 8 MSD A With Fuse MSD B Without Fuse ...
Page 519: ...Appendix 2 Pressure Valve Upper Lid 2019 12 17 CATL Confidential Page 9 Outer side Inner side ...
Page 535: ...2019 12 17 CATL Confidential Page 25 Introduction of Battery Management System BMS Chapter 3 ...
Page 537: ...3 2 Electrical Schematic Diagram Example 2019 12 17 CATL Confidential Page 27 ...
Page 538: ...3 3 Principle Diagram of Battery Management System BMS 2019 12 17 CATL Confidential Page 28 ...
Page 539: ...CATL AMD CODE FOR DAILY USE OF EV BATTERY SYSTEM KongCF ...
Page 564: ...Thank you for watching Web http www catlbattery com Tel 400 918 0889 Any questions ...
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Page 603: ...GOLDEN DRAGON 电源 故障 火警 负极 电源 故障 火警 正极 18 32VDC 负极 进风口 11 27 ...
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