DATA PD-214-F104. TEBS G2 Doc. No. Y (EN - Rev. 001) May Product. icargo. Function. Operation

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1 Commercial Vehicle Systems Product DATA Function On semi-trailers and centre-axle trailers, the axle/bogie will act as a pivot point that, depending on the positioning of the cargo carried by the trailer, will influence the loading of the towing vehicle. In many multi-drop operations, if the cargo is badly positioned or if some cargo is off-loaded without consideration for the distribution of the remaining cargo, this can result in overloading of the towing vehicle s drive axle(s). is a function within Knorr-Bremse s TEBS G.0/G./G. braking systems (with the Trailer Brake Module (TBM) having the relevant software version) which interfaces with the trailer s air suspension system and adjusts the pressure in the air bags of an axle to move the effective bogie centre line and attempt to bring the load on the driving axle of the towing vehicle down to the legal maximum. A further benefit of is reduction in tyre wear. TEBS G Doc. No. Y (EN - Rev. 00) May 0 Doc. No. Y (EN - Rev. 00) May 0 kg PD--F0 Operation is a function of the TEBS G.0/G./G. braking systems which interfaces with the trailer s air suspension system and adjusts the pressure in the air bags of an axle to adjust the load carried by that axle. TEBS G.0/G. with also controls the brakes on that axle separately. The system requires the braking system to be a S/M system and so it is only suitable for TEBS G. systems with TEBS G. Premium Brake Modules. Example: -axle semi-trailer with controlling axle The suspension pressure in the air bags of axles and is measured by the pressure transducer in port of the TBM while the pressure in the air bags on axle is measured by the transducer in port of the Trailer Electro-Pneumatic Module - Premium (TEPM-P). The signal for the transducer in the TEPM-P is then fed to the TBM. constantly monitors the bogie load carried by axles and as a percentage of the total bogie load. Axle loading Axle loading Over If the cargo distribution has resulted in load being removed behind (without loaded ) the trailer bogie, when recognises that there is a risk of overloading the tractor s drive axle because of the cargo forward of the trailer s bogie, will reduce the pressure in the air bag on axle using the Pressure Control Valve (PCV). This will result in more load being carried by axles and, and less being imposed on the king pin and consequently the tractor s drive axle. will ensure that the non-controlled axles of the trailer will be laden up to its programmed maximum (see page ). The default setting Axle loading (with ) is 00%. If this load figure has been reduced during Set Up then will adjust the load accordingly. Air bag pressure reduced Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

2 PD--F0 TEBS G Product Data Doc. No. Y (EN - Rev. 00) May 0 Example: -axle centre-axle trailer with controlling axle The suspension pressure in the air bags of axle is measured by the pressure transducer in port of the TBM, while the pressure in the air bags on axle is measured by the transducer in port of the TEPM-P. constantly monitors the load carried by axle as a percentage of total bogie load. If the cargo distribution has resulted in load being removed behind the trailer bogie, when calculates that there is a risk of overloading the towing vehicle s drive axle because of the cargo forward of the trailer s bogie, will operate as in the semi-trailer example above. (without ) Over loaded Example: -axle centre-axle trailer with controlling axle On a centre-axle trailer which carries a fork lift truck on the rear of the trailer to assist in unloading, when the trailer is unladen the presence of the fork lift truck will reduce the load on the trailer coupling which could lead to instability of the trailer. In this situation would be installed on axle to move the fulcrum point towards the rear and counter the effect of the fork lift truck. (with ) Stable Air bag pressure reduced The activation of results in the reduction of load imposed on the axle it controls and this will increase the risk of wheel locking during braking. For this reason the service braking of this controlled axle is always supplied through the TEPM-P thus enabling independent ABS control of the axle controlled by. In general is deactivated when the bogie load falls below Disable setting (see Set Up). Below this load the trailer (without ) (with ) is lightly loaded and there is no need for its function. is not re-activated until the bogie load exceeds the Enable setting (see Set Up). Unstable Stable Air bag pressure reduced Note: within the air bags of the controlled axle have a configurable minimum pressure below which the pressure is not reduced. This prevents bouncing of the axle which may cause damage to the trailer or the road. during operation, any lift axle forward of the fixed axle, or forward of the axle controlled by will be lowered automatically, as keeping it raised would have a negative effect on s performance. when is not active ( Disabled), the axle(s) controlled by is treated as a normal lift axle under the control of the automatic lift axle control logic. can be disabled in several ways: disable switch connected to any AUXIO pin. Traction Help (TH) request from the towing vehicle activation of the Automatic Traction Control (ATC) function on the towing vehicle. bogie load falls below the setting of Disable (see Set Up). The priority of relative to other functions is shown below: Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

Commercial Vehicle Systems Doc. No. Y (EN - Rev.

ISO 99 or J99 CAN commands Driver request ISO 99 CAN ATC status icorner Automatic Lift Axle Control (LAC) An ADL program may override any calculated lift axle state.

ATC Active will cause an automatic Traction Help request. An icorner command will override any or Automatic Lift Axle Control command. An command will override any Automatic Lift Axle Control command.

3 Commercial Vehicle Systems Doc. No. Y (EN - Rev. 00) May 0 TEBS G PD--F0 Priority Function Description Highest Auxiliary Design Language (ADL) Lowest Activation of a function will override any action requested by a function with a lower priority ISO 99 or J99 CAN commands Driver request ISO 99 CAN ATC status icorner Automatic Lift Axle Control (LAC) An ADL program may override any calculated lift axle state. A command such as Raise or Lower a lift axle will disable all lower priority functions. Driver request via a connected manual switch input such as Traction Help. ATC Active will cause an automatic Traction Help request. An icorner command will override any or Automatic Lift Axle Control command. An command will override any Automatic Lift Axle Control command. If no other request is active then the Automatic Lift Axle Control will take control of the lift axle(s). Set Up TEBS G.0/G. TEBS G. Premium Setting up of is carried out using the Knorr Bremse diagnostic software. ECUtalk (version...0 or higher is required). This can be downloaded from BremseCVS.com in the Download Software section. Note: example shown here is a -axle semi-trailer. Use ECUtalk, select Information then Change Configuration to configure the system. Click Next. Select the axle to be controlled by. Note: on semi-trailers the axle is the rearmost by default, on centre-axle trailers the axle controlled by can be either behind or in front of the non-lifting axle. Click on Next. Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

Once is disabled below the set axle/bogie load, the controlled axle will have only a minimum pressure maintained in its air bags - the default pressure is 0. bar but this can be adjusted.

4 PD--F0 TEBS G Product Data Doc. No. Y (EN - Rev. 00) May 0 Set the required control parameters. can be automatically disabled below a given axle/bogie load ( Disable ) and re-enabled above a higher axle/bogie load ( Enable ). Once is disabled below the set axle/bogie load, the controlled axle will have only a minimum pressure maintained in its air bags - the default pressure is 0. bar but this can be adjusted. This pressure is the minimum that will be retained in the air bags during any and lift axle control operation. Retaining a minimum pressure prevents the axle being damaged due to oscillation or bouncing on poor road services and mimics use of a pressure retention valve fitted in conventional suspension control circuits. The Load [%] setting controls the degree of load that can be experienced on the other (noncontrolled) axle(s). The default is set to 00% but it is also be possible to program different values (from 90% upwards). TEBS G.0/G. TEBS G. Premium Click on when all of the required parameters are set. is now ready for operation. Note: Ensure that the recommendations of the axle manufacturer are observed with regard to overload. Note: It is the vehicle manufacturer s responsibility to ensure that the air suspension system is capable of supplying sufficient air pressure and volume to the air bags of the axles not raised or off-loaded during operation to ensure that the required axle load is carried by those axles. Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

TEBS G.0 or TEBS G. Brake Module (TBM) [Software version 00.

Premium Brake Module (TBM) K0900 ES0 Trailer Electro-Pneumatic

or higher] K088 - Pressure Control Valve (PCV) K00, K008, K009* -

Y8 for suitable cables TEPM-P Connecting Cables * alternatives

trailers with lift axle control (LAC) (see PD--F0, Document No.

5 Commercial Vehicle Systems Doc. No. Y (EN - Rev. 00) May 0 TEBS G PD--F0 System Requirements requires the following components: Part No. Type No. Description In the range K0900 to K0909* or K090 to K099* ES00 TEBS G.0 or TEBS G. Brake Module (TBM) [Software version 00. or higher] OR K0* ES09 TEBS G. Premium Brake Module (TBM) K0900 ES0 Trailer Electro-Pneumatic Module Premium (TEPM-P) [Software version 00. or higher] K088 - Pressure Control Valve (PCV) K00, K008, K009* - PCV Connecting Cables (, 9, m) See PD--0, Document No. Y8 for suitable cables TEPM-P Connecting Cables * alternatives depending on vehicle design specification may be fitted on trailers with lift axle control (LAC) (see PD--F0, Document No. Y8) and icorner (see PD--F0, Document No. Y). Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

6 PD--F0 TEBS G Product Data Doc. No. Y (EN - Rev. 00) May 0 Installation - typical installation TEBS G.0 or G. Brake Module (TBM) Trailer Electro-Pneumatic Module Premium (TEPM-P) Pressure Control Valve (PCV) Levelling Valve 00bw is a function of the TEBS G.0/G./G. braking systems and requires the fitment of a suitable TEBS G.0, G. or G. Premium Brake Module (TBM) plus a Trailer Electro-Pneumatic Module Premium (TEPM-P) and a Pressure Control Valve (PCV) - see System Requirements on page. The TEPM-P is used to control the service braking on the axle to be controlled by and the PCV controls the air pressure in the air suspension on that axle. All other equipment is as would be installed on a standard TEBS G.0/G./G. system. Note: Knorr-Bremse recommends a minimum air suspension reservoir capacity of 0 litres for. During operation the pressure in the air bags of the controlled axle will be reduced and so the system must provide separate anti-lock (ABS) control of the service brakes on that axle. This is achieved by having a S/M system with the TEPM-P acting as the third modulator. The TBM should be installed as specified in the PD--00, Document No. Y00. The PCV should be installed centrally above the controlled axle, ideally with the supply to the air bags coming from a T-piece at the PCV. The air suspension connection to port of the TEPM-P must come from the air bag on that axle which is further from the PCV. The TEPM-P and PCV are connected to the In-Out Connector of the TEBS G.0/G./G. Premium Brake Module. A disable switch should be fitted to allow the driver to disable the function. Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

7 Commercial Vehicle Systems Doc. No. Y (EN - Rev. 00) May 0 TEBS G PD--F0 Typical Wiring Diagram - TEBS G. with output ISO 8 Trailer Electro-pneumatic Module Premium (TEPM-P) S-A X S-B 8 RD BK YE BN WH WH/GN WH/BN Pressure Control Valve (PCV) (YE) (BK) (WH) (BN)... (BK) (WH) (YE) (YE) (BK) (WH) (BN) RD BK YE BN WH WH/GN WH/BN YE BK YE WH BN WH BK V_VALVE V_ECU GND_H GND_M WL V-CAN-H V-CAN-L AUX IO AUX IO AUX IO SENS_Sup / TriState SENS_In / TriState SENS_GND Brake-Light V Brake-Light GND V-CAN-L V-CAN-H AUX IO - RET AUX IO - RET S-D In-Out S-F S-C S-E Power B TEBS G. - ECU _00 This document forms part of the Product Manual for the TEBS G Family, Document No. Y0 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

8 PD--F0 TEBS G Product Data Doc. No. Y (EN - Rev. 00) May 0 Revision Details Rev. 000 September 0 New document Rev. 000 August 0 Correction changed to in line with other language versions Rev. 00 May 0 TEBS G. Premium added. Pressure Control Valve K008 replaced by K088. Knorr-Bremse Systeme für Nutzfahrzeuge GmbH. Moosacher Straße Munich. Germany. Tel: Fax:

DATA. icargo) Product. Application. Purpose. Function. Knorr-Bremse s intelligent axle loading system, icargo, is designed to work on:

DATA. icargo) Product. Application. Purpose. Function. Knorr-Bremse s intelligent axle loading system, icargo, is designed to work on: Commercial Vehicle Systems Product DATA Doc. No. Y09 (EN - Rev. 00) January 0 Application Knorr-Bremse s intelligent axle loading system,, is designed to work on: Semi-trailers with two to five axles Centre-axle