China Automotive Technology and Research Center
10 May 2017 Background and concerns from China on ASEP theory and test method (CATARC) ASEP II-03-03 2017-05-10 CATARC
11 Jul 2017 Driving conditions and conclusions of China on ASEP test method (CATARC) ASEP II-04-11 2017-07-11 CATARC
7 Nov 2017 ASEP: Proposal for next steps (CATARC) ASEP II-05-02 2017-11-07 CATARC
8 Nov 2017 China presentation: ASEP scope and border conditions (CATARC) ASEP II-05-06 2017-11-08 CATARC
24 Jan 2018 ASEP: Brief introduction of proof tests for ASEP and ECE R51 (CATARC) ASEP II-06-06 2018-01-24 CATARC
21 Jun 2018 UN R51: Introduction of proof tests for ASEP (CATARC) ASEP II-07-07 2018-06-21 CATARC
21 Jun 2018 UN R51: Technical plans on China ASEP (CATARC) ASEP II-07-08 2018-06-21 Presentation on China vehicle noise and ASEP research, plans for implementation, and integration with UN R51. CATARC
24 Jul 2018 ASEP: China research update (CATARC) ASEP II-08-05/Rev.1 2018-07-24 CATARC
3 Jun 2020 Measurement Methods for Noise Emitted by Light-duty Vehicles in Multiple Driving Mode Conditions (CATARC) ASEP II-16-06 2020-06-03 CATARC
3 Feb 2012 Discussion for limit values of ECE R51 – 03 series (CATARC) GRB-55-05 2012-02-03 Presentation by the China Automotive Technology and Research Center. CATARC
9 Feb 2012 Discussion for limit values of ECE R51 – 03 series (Revised) (CATARC) GRB-55-05/Rev.1 2012-02-09 Revised presentation by the China Automotive Technology and Research Center (CATARC) on proposed new noise limit values. CATARC
28 Jan 2013 UN R51: China is finding common solutions for M1 and N1 sub-categories (CATARC) GRB-57-05 2013-01-28 Presentation aimed at resolving differences in vehicle categorizations used around the world. CATARC
28 Jan 2013 UN R51: Chinese suggestions on subcategories of commercial vehicles (CATARC) GRB-57-06 2013-01-28 CATARC
28 Jan 2013 UN R51: Sub-categories table suggestion from China (CATARC) GRB-57-07 2013-01-28 CATARC
30 Aug 2013 ASEP acceleration test proposals for low and high-powered vehicles (CATARC) GRB-58-07 2013-08-30 Discussion paper concerning acceleration test border lines. CATARC
30 Aug 2013 Noise-limit values and Chinese vehicle categories (CATARC) GRB-58-10 2013-08-30 Discussion paper towards defining vehicle subcategories capable of addressing range of vehicles found in Chinese market, including high‐performance coupes, sports cars, saloon cars, SUV, MPV, Kei‐cars, Kei‐trucks, mini‐buses, mini‐trucks and so on. CATARC
2 Sep 2014 China Proposal for treatment of Micro-Van and Micro-Truck classes under UN R51 (CATARC) GRB-60-10/Rev.1 2014-09-02 Proposal to permit a 74dB(A) limit value for the noise of micro-vans and micro-trucks. CATARC
5 Sep 2014 China Proposal for a harmonized M1 classification and limits (CATARC) GRB-60-15 2014-09-05 Comparison ECE R51.03 (as adopted by GRB) versus the draft China regulation GB1495 for M1 vehicle noise and proposal for reconciling apparent differences between them. CATARC
24 Aug 2015 Plans for China vehicle noise standards working group (CATARC) GRB-62-10 2015-08-24 Presentation on China's international noise standards working group activities and program for future development of vehicle noise and silencing system durability requirements. CATARC
7 Sep 2016 Implementation of the 03 series of amendments to Regulation No. 51 in China (China and CATARC) GRB-64-24 2016-09-07 China CATARC
2 Feb 2017 China research on M3 subcategories under UN Regulation No. 51-03 series (China and CATARC) GRB-65-02 2017-02-02 China CATARC
5 Sep 2017 Noise problems and driving conditions in China based on R51.03 (CATARC and China) GRB-66-21 2017-09-05 CATARC China
22 Jan 2018 Suggestions for the development of UN R51 (China and CATARC) GRB-67-07 2018-01-22 China CATARC
28 Aug 2018 UN R51.03: Comments on tyre selection (China and CATARC) GRB-68-02 2018-08-28 China CATARC
23 Jan 2019 UN R51: A preliminary study on test methods for R51-03 (CATARC) GRB-69-18 2019-01-23 CATARC
2 Sep 2022 UN R51: Research on Measurement Methods for LDV & HDV in Multiple Driving Mode Conditions (CATARC and China) GRBP-76-29 2022-09-02 CATC Data Study and Measurement Methods Research CATARC China
7 Feb 2023 Research on Measurement Methods for Heavy-Duty Vehicles in Multiple Driving Mode Conditions (CATARC) GRBP-77-28 2023-02-07 CATARC
7 May 2014 China proposal for micro-van and micro-truck noise-limit values (CATARC) IWG-R51/R59-03-10 2014-05-07 CATARC