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| Document Title | UN R13: Proposal for a Supplement to the 11 series of amendments | ||||||||
| Reference Number | GRVA-14-13 | ||||||||
| Date |
21 Sep 2022
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| Summary | Proposal to introduce provisions for electric regenerative braking systems. | ||||||||
| Source(s) | CLCCR | ||||||||
| Rulemaking Area(s) | UN R13 Heavy-Duty Braking | ||||||||
| Proposal Status | Superseded | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRVA/2023/3 | UN R13: Proposal for a supplement to the 11 series of amendments | ||||||||
| Downloads | |||||||||
| UNECE server | .pdf format | .docx format | |||||||
| Excerpts from session reports related to this document | |||||||||
| GRVA | Session 14 | 26-30 Sep 2022 |
102. The expert from CLCCR introduced GRVA-14-13, aimed at allowing the type approval of braking systems for trailers equipped with an electric regenerative braking system and/or a propulsion system in its axle. These new axles in trailers have the potential to convert the kinetic energy of an axle to supply electric systems (e.g. cooling units for reefer) as well as to support the motor vehicle (e.g. the tractor) during start-stop manoeuvres, during accelerating/braking. This leads to lower fuel consumption of the motor vehicle respectively cooling units (ergo lower CO2 emissions). The expert from CLEPA supported the proposal. The expert from OICA welcomed the innovation proposed by CLCCR, but could not support the amendment proposal, as drafted. 103. GRVA invited industry to work together on this item and requested the secretariat to distribute GRVA-14-13 with an official symbol at the next GRVA session. |
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Main aim to address demands for CO2 reduction. Relates to introduction of "e-axles" which come in two main configurations/use cases. CLCCR interested in electric regenerative braking systems covering simple dynamo systems and more complex/advanced systems. Very simple systems below 60 kW level are out of scope because no issues with braking (vehicle stability, communication with master braking system of towing vehicle, etc.).
CLCCR in beginning of this process, so document and proposal provided to solicit feedback. OICA has some issues but can work through them with CLCCR. CLEPA also has issues: stresses that amendment also covers <b>caravans</b>. Intention to submit a new document for GRVA-15 as a formal document.
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