{"id":16152,"date":"2022-04-14T10:23:01","date_gmt":"2022-04-14T14:23:01","guid":{"rendered":"https:\/\/gm-techlink.com\/?p=16152"},"modified":"2022-04-14T15:41:19","modified_gmt":"2022-04-14T19:41:19","slug":"ultium-battery-system-powers-the-gmc-hummer-ev-pickup","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=16152","title":{"rendered":"Ultium Battery System Powers the GMC HUMMER EV Pickup"},"content":{"rendered":"

The all-new 2022 GMC HUMMER EV Edition 1 Pickup is powered by an Ultium 24-module battery system that boasts a GM-estimated 1,000 horsepower and a combined axle torque of 11,500 lb.-ft. while providing a range of 329 miles (529 km) on a full charge.1<\/sup> The Ultium architecture provides the framework to integrate a number of advanced technologies that make the HUMMER EV a true supertruck. (Fig. 12)<\/p>\n

\"\"Fig. 12<\/strong><\/p>\n

Battery Architecture <\/strong><\/p>\n

The Ultium high-voltage battery pack on the HUMMER EV Edition 1 Pickup features large-format, pouch-style lithium-ion cells, which can be stacked vertically or horizontally inside the battery pack, depending on packaging requirements. The large-scale, high-energy Ultium battery cells are stacked vertically in two layers and mounted beneath the passenger compartment in the HUMMER EV Pickup. (Fig. 13)<\/p>\n

\"\"Fig. 13<\/strong><\/p>\n

The unique nickel, cobalt, manganese, aluminum (NCMA) cell chemistry of the Ultium batteries use 70% less cobalt than GM\u2019s previous generation of EVs, resulting in some of the lowest cobalt \u2014 a rare and costly material \u2014 content of any large-format pouch cells. The cells are configured in three parallel strings of eight. The cell groups are electrically joined in series to form the Cell Module Assembly\u2009(CMA), also known as a high-voltage battery section.<\/p>\n

The pack contains\u200924 CMAs. Each CMA is identical, although uniquely serialized, and contains a non-serviceable K112 EV Battery Interface Control Module with a wireless transmitter\/receiver. These smart modules monitor temperature, current and voltage to maintain balance within the truck\u2019s battery cell groups for optimal performance and battery longevity.<\/p>\n

Each\u2009K112\u2009 EV Battery Interface Control Module communicates wirelessly with the\u2009K291\u2009 EV Battery Pack Communication Module, which is also located within the battery pack. The\u2009K291\u2009EV Battery Pack Communication Module in turn communicates with the vehicle-mounted\u2009K16A\u2009Battery Energy Control Module\u2009(BECM) via wired communication circuits. The\u2009K16A\u2009BECM\u2009is the host controller for all battery diagnostics and system status.<\/p>\n

The Ultium batteries are cooled and heated with a 50\/50 mixture of DEX-COOL coolant and de-ionized water. Each CMA and the A28\u2009EV Battery Disconnect Relay assembly contain internal coolant passages. A refrigerant\/coolant heat exchanger (chiller) and the\u2009G1HV\u2009Air Conditioning with Motor Compressor cools down the high-voltage battery.<\/p>\n

Charging Capabilities<\/strong><\/p>\n

The two layers of battery cell modules combine to produce a pack with approximately 200 kWh of available energy. The CMAs in each layer are configured in series, essentially operating like two battery packs in one assembly. (Fig. 14) The total voltage per layer is about\u2009400V.<\/p>\n

\"\"<\/a>Fig. 14<\/strong><\/p>\n

Under normal operating conditions, these two layers operate electrically in parallel with each other. If conditions allow, the high voltage contactors can be configured so that each layer is wired in series to facilitate\u2009800V charging. As a result, the flexible, high-voltage architecture enables 800-volt DC fast charging using the industry\u2019s fastest 350-kilowatt DC fast chargers available at public locations.2<\/sup><\/p>\n

The charging system also is designed to support legacy 400-volt charging infrastructure, without the need for a converter box or other accessories, allowing the HUMMER EV to use a variety of charging stations. The vehicle\u2019s charging hardware is complemented by in-vehicle and available smartphone apps that help customers find available charging locations while also preconditioning the battery to the proper temperature for the most efficient charging session.<\/p>\n

Charging Levels<\/strong><\/p>\n

The dual-level charge cord, provided with the vehicle, includes two types of household electrical plugs: a standard 120V receptacle for Level\u20091 charging and a 220\u2013240V receptacle for Level\u20092 charging. Level 2 charging using a 240V NEMA 14-50 outlet (40 amp breaker) provides approximately 10 miles (16 km) per hour of charge.2 \u00a0<\/sup>Battery charge level is indicated by the vehicle\u2019s state-of-the-art lighting. (Fig. 15)<\/p>\n

\"\"Fig. 15<\/strong><\/p>\n

Level 2 charging using an optional Level\u20092 240V (60 amp breaker) home charging station or a public station provides approximately 16 miles (26 km) per hour of charge. 2<\/sup><\/p>\n

Level 3 fast charging, or DC Fast Charging, (up to 800V\/350kW) uses DC current supplied directly to the drive motor battery. Fast charging capability provides approximately 100 miles (160 km) in 12 minutes (peak charging). Level\u20093 chargers are typically found only in a commercial\/public location. 2<\/sup><\/p>\n

Regen on Demand<\/strong><\/p>\n

With Regen on Demand and One-Pedal Driving \u2014 both driver-controlled braking features \u2014the kinetic energy of the truck\u2019s forward momentum can be converted into electricity to be stored in the Hybrid\/EV Battery Pack, further optimizing the driving range.<\/p>\n

While pulling the steering wheel paddle, Regen on Demand can slow the vehicle to a full stop without pressing the brake pedal. (Fig. 16) Similarly, One-Pedal Driving can slow the vehicle to a full stop using the accelerator pedal to provide very fine control. One-Pedal Driving can be configured with multiple levels to match the driver\u2019s preference.<\/p>\n

\"\"Fig. 16<\/strong><\/p>\n

For more information about the new GMC HUMMER EV, refer to Bulletin #21-NA-295.<\/p>\n

– Thanks to Mark Shearer and David Rainey<\/em><\/p>\n

1<\/sup>Actual range will vary based on several factors, including temperature, terrain, battery age, loading, use and maintenance.<\/p>\n

2<\/sup>Actual charge times will vary based on battery starting state of charge, battery condition, output of charger, vehicle settings and outside temperature.<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

The all-new 2022 GMC HUMMER EV Edition 1 Pickup is powered by an Ultium 24-module battery system that boasts a GM-estimated 1,000 horsepower and a combined axle torque of 11,500 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[111],"tags":[],"class_list":["post-16152","post","type-post","status-publish","format-standard","hentry","category-2022-april-b"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/16152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16152"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/16152\/revisions"}],"predecessor-version":[{"id":16162,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/16152\/revisions\/16162"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}