Document ID: chunk:federal_register_of_legislation:F2021C00434:body:0:p25
Version: federal_register_of_legislation:F2021C00434
Segment Type: other
Provision Reference: 
Character Range: 74766–77927

electronic unit supply, 6 amps minimum rated capacity
        Pin 4 -ve high current trailer solenoid valve supply, 20 amps minimum continuous rated capacity 30 amps maximum capacity
        Pin 5 trailer 'Antilock System' failure, switched to -ve (eg pin 3 or pin 4) upon fault detection, 2 amps minimum rated capacity.

       1.3.2.2 For 24 volt operation
       Pin 1  +ve high current trailer solenoid valve supply, 10 amps minimum continuous rated capacity 15 amps maximum capacity
       Pin 2  +ve low current trailer electronic unit supply, 2 amps minimum rated capacity
       Pin 3  -ve low current trailer electronic unit supply, 3 amps minimum rated capacity
       Pin 4 -ve high current trailer solenoid valve supply, 10 amps minimum continuous rated capacity 15 amps maximum capacity
       Pin 5 trailer 'Antilock System' failure, switched to -ve (eg pin 3 or pin 4) upon fault detection, 1 amp minimum rated capacity.

       1.3.3     Either the optical warning lamp specified in clause 1.2.1 of this APPENDIX or an additional yellow optical warning signal (appropriately labelled) must light up whenever Pin 5 of the connector specified in clause 1.3.2 of this APPENDIX is connected to ground or a -ve connector.
APPENDIX 2
       Special Provisions for vehicles incorporating an Electronic Stability Control System.
Refer Clause 4.1.1.1

         The following is a modified form of Annex 9 of UNECE Regulation No. 13-H– UNIFORM PROVISIONS CONCERNING THE APPROVAL OF PASSENGER CARS WITH REGARD TO BRAKING, incorporating supplement 7 and corrigendum to supplement 7 of the 00 series of amendments.

0.                                          DEFINITIONS
0.1.                                    "Ackerman steer angle" means the angle whose tangent is the wheelbase divided by the radius of the turn at a very low speed.
0.2.                                    "Electronic Stability Control System" or "ESC System" means a system that has all of the following attributes:
0.3.                                    That improves vehicle directional stability by at least having the ability to automatically control individually the braking torques of the left and right wheels on each axle [1]/ to induce a correcting yaw moment  based on the evaluation of actual vehicle behaviour in comparison with a determination of vehicle behaviour demanded by the driver;
0.4.                                    That is computer controlled with the computer using a closed-loop algorithm to limit vehicle oversteer and to limit vehicle understeer based on the evaluation of actual vehicle behaviour in comparison with a determination of vehicle behaviour demanded by the driver;
0.5.                                    That has a means to determine directly the value of the vehicle's yaw rate and to estimate its side-slip or side-slip derivative with respect to time;
0.6.                                    That has a means to monitor driver steering inputs; an
0.7.                                    That has an algorithm to determine the need, and a means to modify propulsion torque, as necessary, to assist the driver in maintaining control of the