# US 12,005,795 B2 · Onboard powertrain for an automated guided vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,795 B2 - Document ID: US12005795B2 - Status: Granted - Kind: B2 - Application number: 17/755,363 - Filed: 2019-11-27 - Published: 2022-12-01 - Granted: 2024-06-11 - Earliest claimed: 2019-11-27 - Assignees: ABB Schweiz AG - Applicants: ABB Schweiz AG - Inventors: Ahmed Abdelhakim; Haofeng Bai; Frans Dijkhuizen - Web page: https://patentgrep.com/patent/US12005795B2 ## CPC - B60L 7/14: for vehicles propelled by AC motors - B60L 53/22: Constructional details or arrangements of charging converters specially adapted for charging electric vehicles - B60L 7/10: Dynamic electric regenerative braking (B60L7/22 takes precedence) - B60L 15/007: {Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles} - B60L 50/40: using propulsion power supplied by capacitors - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60L 53/14: Conductive energy transfer - B60L 58/21: having the same nominal voltage - H02M 1/0095: {Hybrid converter topologies, e.g. NPC mixed with flying capacitor, thyristor converter mixed with MMC or charge pump mixed with buck} - H02M 3/158: including plural semiconductor devices as final control devices for a single load - H02M 7/5387: in a bridge configuration - H02P 27/06: using DC to AC converters or inverters (H02P27/05 takes precedence) - B60L 2200/44: Industrial trucks or floor conveyors - B60L 2210/42: Voltage source inverters - H02M 7/797: using semiconductor devices only - Y02P 90/60: Electric or hybrid propulsion means for production processes - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An onboard powertrain for an automated guided vehicle, AGV, is presented herein. The onboard powertrain includes a split-source inverter, SSI, having at least one middle point pole, a positive DC-link pole, and a negative DC-link pole, a battery and an inductor connected in series between the positive or negative DC-link pole and the middle point pole, and a supercapacitor connected between the positive and negative DC-link poles. ## Claims ### Claim 1 An onboard powertrain for an automated guided vehicle, AGV, the onboard powertrain comprising: a split-source inverter, SSI, having at least one middle point pole, a positive DC-link pole, and a negative DC-link pole; a battery and an inductor connected in series between the positive or negative DC-link pole and the middle point pole; and a supercapacitor per electrical phase (Vs, Vb, Vc) of the SSI, each connected between a common negative DC-link pole for the SSI and a separate positive DC-link pole per phase of the SSI. ### Claim 2 (depends on 1) The onboard powertrain according to claim 1, configured to generate a plurality of electrical phases (Va, Vb, Vc), such as three electrical phases (Va, Vb, Vc). ### Claim 3 (depends on 2) The onboard powertrain according to claim 2, wherein each electrical phase (Va, Vb, Vc) is connected to an individual middle point pole. ### Claim 4 (depends on 3) The onboard powertrain according to claim 3, further comprising a battery and an inductor connected in series between the positive or negative DC-link pole and each middle point pole. ### Claim 5 (depends on 2) The onboard powertrain according to claim 2, wherein all electrical phases are connected to a common middle point pole. ### Claim 6 (depends on 5) The onboard powertrain according to claim 5, further comprising a semiconductor element between the common middle point pole and each electrical phase. ### Claim 7 (depends on 6) The onboard powertrain according to claim 6, wherein the semiconductor element is a diode or a MOSFET. ### Claim 8 (depends on 2) The onboard powertrain according to claim 2, wherein the battery is connected closer to the positive or negative DC-link pole than to the inductor. ### Claim 9 (depends on 1) The onboard powertrain according to claim 1, wherein the battery is connected closer to the positive or negative DC-link pole than to the inductor. ### Claim 10 (depends on 1) The onboard powertrain according to claim 1, further comprising an off-board charger with a step-down transformer. ### Claim 11 (depends on 10) The onboard powertrain according to claim 10, wherein the onboard charger is connected to the electrical phases (Va, Vb, Vc) of the SSI via switches and inductances. ### Claim 12 (depends on 10) The onboard powertrain according to claim 10, wherein the onboard charger is connected separately to individual middle point poles. ### Claim 13 (depends on 10) The onboard powertrain according to claim 10, wherein the onboard charger is connected to a common middle point pole. ### Claim 14 (depends on 1) The onboard powertrain according to claim 1, wherein the capacitance of at least one supercapacitor is at least 1 mJ/mm3. ### Claim 15 (depends on 14) The onboard powertrain according to claim 14, wherein the capacitance of each supercapacitor is at least 1 farad (F), such as at least 10 F or at least 100 F. ### Claim 16 An onboard powertrain for an automated guided vehicle, AGV, the onboard powertrain comprising: a split-source inverter, SSI, having at least one middle point pole, a positive DC-link pole, and a negative DC-link pole; a battery and an inductor connected in series between the positive or negative DC-link pole and the middle point pole; a supercapacitor connected between the positive and negative DC-link poles; and an off-board charger with a step-down transformer. ### Claim 17 (depends on 16) The onboard powertrain according to claim 16, wherein the onboard charger is connected to the electrical phases (Va, Vb, Vc) of the SSI via switches and inductances. ### Claim 18 (depends on 16) The onboard powertrain according to claim 16, wherein the onboard charger is connected separately to individual middle point poles. ### Claim 19 (depends on 16) The onboard powertrain according to claim 16, wherein the onboard charger is connected to a common middle point pole. ### Claim 20 (depends on 16) The onboard powertrain according to claim 16, configured to generate a plurality of electrical phases (Va, Vb, Vc).