ChaoJi
Type | Electric vehicle, motorcycle, construction machine, aircraft and ship charging | ||
---|---|---|---|
Production history | |||
Designer | CHAdeMO Association, China Electricity Council (CEC) | ||
Designed | 2018‒2020 | ||
Produced | 2021‒ | ||
General specifications | |||
Pins | 7 (1 earth, 1 positive, 1 negative, 4 signalling for standard configuration)[1] | ||
Connector |
| ||
Electrical | |||
Signal | DC | ||
Earth | Dedicated pin | ||
Max. voltage | 1500 V | ||
Max. current | 600 A | ||
Pinout | |||
Pinouts for ChaoJi vehicle connector and vehicle inlet | |||
DC+ | Positive | power | |
DC- | Negative | power | |
PE | Protective earth | full-current protective earthing | |
CC1 | Connection Confirmation 1 | charger ⇄ car | |
CC2 | Connection Confirmation 2 | car ⇄ charger | |
S+ | Signalling |
CAN_H | |
S- | Signalling |
CAN_L | |
2×10-millimetre-diameter (0.4 in) power transfer pins[2] |
The ChaoJi connector, also referenced as CHAdeMO 3.0, is an ultra-high-power charging standard charging electric cars, released in 2020.
A joint agreement between the CHAdeMO association and the China Electricity Council (with State Grid Corporation of China) was signed on 28 August 2018[6] after which the development was enlarged to a larger international community of experts.[7]
Implementation
The new EVs implementing the standard are to be fitted with a female ChaoJi DC inlet, with a vehicle-side locking mechanism. This inlet can be co-sited in a "Combo" format underneath a GB/T-AC inlet (female), an SAE J1772 AC inlet (male), or 1‒3-phase AC Type 2 inlet (male).[8]
For the charging infrastructure, DC fast-chargers would be fitted with the common ChaoJi male plug outlet and implement one or more variations of communication protocols:[8]
- ChaoJi-1 operating under the GB/T protocol, for primary deployment in mainland China.
- ChaoJi-2 operating under the CHAdeMO 3.0 protocol, for primary deployment in Japan and other parts of the world.
Communication between the car and charger would use a CAN bus for both ChaoJi-1 and -2.[8] A unified communication protocol based on Ethernet is also under consideration.[9]
Power transfer pins are 10-millimetre-diameter (0.4 in) and attached to the infrastructure (male) side.[2] The connector is designed to be at least as strong as a CHAdeMO outlet.[1]
Updates to the ChaoJi standard enables compatibility with the CHAdeMO 3.1 protocol (and by extension CCS).[10]
Megawatt charging
A new coupler codenamed ‘Ultra-ChaoJi’ with an additional set of power pins above the standard ChaoJi pinouts, is currently under development. Ultra-ChaoJi is expected to be used by electrified heavy-duty vehicles (HDVs), airplanes and ships in the near future.
Etymology
The name comes from 超级, meaning "super". The reason for choosing such a name was multifactorial. Other than the reference to supercharging, the word ChaoJi itself sounds similar to "charger" and, like CHAdeMO, starts with "Cha".
References
- ^ a b Imazu, Tomoya; Yoshida, Dave Makoto; Blech, Tomoko. CHAdeMO 3.0 – Standard harmonization efforts between CHAdeMO and GB/T (PDF). eMOVE360 2019 Charging & Energy Conference. pp. 12‒14, 16.
Interoperability/backward compatibility … CHAdeMO and ChaoJi to co-exist as multi-outlet chargers … Mechanical strength of the connector equivalent to CHAdeMO, to avoid breakage in the field. … Safety specification identical or better than CHAdeMO. … Control-pilot circuit harmonized with new GB/T and CCS (and IEC 61851-23-1) … Backward compatibility with CHAdeMO, GB/T and (potentially) CCS. … Optional combo-style inlet integrating AC type-1, -2 and GB/T-AC
- ^ a b Yoshida, Dave Makoto; Tsuchiya, Katsunori (2020-02-17). "Charging Standard: Future Direction" (PDF). Charging Infrastructure for Vehicles Using Battery Storage: Perspective on Standardisation Developments. International Transport Forum: 28. Retrieved 2020-03-23.
10 mm
- ^ Berman, Bradley. "CHAdeMO 3.0 to harmonize global EV quick charging standards". www.sae.org. Retrieved 25 February 2023.
- ^ Nisewanger, Jeff (2019-06-19). "Joint China and Japan ChaoJi project works towards "CHAdeMO 3.0"". Electric Revs.
common connector design called ChaoJi for future use in Japan, China, … ChaoJi (超级) means "super" in Chinese. … new common plug and vehicle inlet that can support up to 600A at up to 1,500V for a total power of 900 kW.
- ^ NI Feng, IMAZU Tomoya (2020-06-19). "ChaoJi: A Unified Future-Oriented Charging Programme" (PDF). CHAdeMO Association. Archived (PDF) from the original on 2020-09-20. Retrieved 2021-09-07.
- ^ Yoshida, Makoto; Tsuchiya, Katsunori (2018-11-30). Super High Power Charging: China-Japan Joint Research Project (presentation) (Report). p. 16. Retrieved 2020-03-23.
China and Japan Agreement … Agreement to develop common new standard on … China Electricity Council and CHAdeMO Association Agreed to Establish the new future Standard for 2020
- from the original on 2020-09-18. Retrieved 10 December 2020.
- ^ IEC 61851-1is necessary for the use of adapter
- ^ NI Feng / IMAZU Tomoya (2020-06-19). "Chaoji: A Unified Future-Oriented Charging Programme" (PDF). Archived (PDF) from the original on 2020-09-20. Retrieved 2020-09-07.
- ^ https://www.greencarreports.com/news/1140871_china-updates-its-ev-charging-standard-claims-cross-compatibility
Further reading
- Berman, Bradley (2020-05-28). "New CHAdeMO 3.0 aims to harmonize global EV quick-charging standards". Automotive Engineering. SAE International. Retrieved 2020-06-06.
co-developed by the China Electricity Council … 900 kW of power – with a peak of 600 amps and 1,500 volts … Adaptors will likely be produced and sold for Tesla and CCS-compatible vehicles to use CHAdeMO 3.0 chargers … new coupler reduced the number of pins from seven to four, removing the optional … 12-volt auxiliary power to bi-directional chargers. … Under the ChaoJi design, CHAdeMO and China's GB/T chargers use the same hardware. … control-pilot circuit detects which of the two communications protocols to use