# US 12,109,908 B2 · Electrified motor vehicle with a display unit for displaying at least one residual range

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- Number: US 12,109,908 B2
- Document ID: US12109908B2
- Status: Granted
- Kind: B2
- Application number: 17/594,332
- Filed: 2020-05-27
- Published: 2022-06-09
- Granted: 2024-10-08
- Earliest claimed: 2019-06-27
- Assignees: Bayerische Motoren Werke Aktiengesellschaft
- Applicants: Bayerische Motoren Werke Aktiengesellschaft
- Inventors: Andreas Ertlmeier; Hajo Meinert; Julian Wiesmeier
- Web page: https://patentgrep.com/patent/US12109908B2

## CPC

- B60L 58/12: responding to state of charge [SoC]
- B60K 35/213: {Virtual instruments}
- B60K 35/215: characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
- B60K 35/22: Display screens
- B60K 35/28: characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
- B60K 2360/169: Remaining operating distance or charge
- B60K 2360/174: Economic driving
- B60L 2260/52: drive range estimation, e.g. of estimation of available travel distance
- 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
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

## Abstract

An electrified motor vehicle includes a display unit for displaying at least one residual range, a high-voltage accumulator, and at least one electronic control unit which determines an expected minimum range on the basis of the state of charge of the high-voltage accumulator and which determines, on the basis of the temperature of the high-voltage accumulator and the state of charge of the high-voltage accumulator, a temperature-dependent bonus range which is displayed instead of the minimum range if the minimum range has dropped to zero.

## Claims

### Claim 1

An electrified motor vehicle comprising:
a display unit for displaying at least one residual range;
a high-voltage accumulator; and
at least one electronic control unit which determines an expected minimum range based on a state of charge of the high-voltage accumulator and which determines a temperature-dependent bonus range based on a temperature of the high-voltage accumulator and the state of charge of the high-voltage accumulator,
wherein the bonus range is determined as an addition to the minimum range, and
wherein the bonus range is displayed instead of the minimum range if the minimum range has fallen to zero.

### Claim 2 (depends on 1)

The electrified motor vehicle according to claim 1, wherein
the bonus range is displayed in addition to the minimum range if the minimum range has not yet fallen to zero.

### Claim 3 (depends on 1)

The electrified motor vehicle according to claim 1, wherein
in addition to the bonus range, a request to externally charge the vehicle is displayed when the vehicle is next switched off if the minimum range has fallen to zero.

### Claim 4 (depends on 1)

The electrified motor vehicle according to claim 1, wherein
in addition to the bonus range, a request to externally charge the vehicle is displayed when the vehicle is next switched off only if the minimum range has fallen to zero and, after switching off the vehicle, cooling of the high-voltage accumulator to a temperature which means that it is no longer possible to start the electric vehicle is predetermined.

### Claim 5 (depends on 1)

The electrified motor vehicle according to claim 1, wherein the bonus range is reset when switching off the vehicle.

### Claim 6 (depends on 1)

The electrified motor vehicle according to claim 1, wherein
the bonus range is reset when restarting the vehicle if the temperature of the high-voltage accumulator is lower during the restart than during a previous switching off of the vehicle.

### Claim 7

An electronic control unit for an electrified motor vehicle having a display unit for displaying at least one residual range and a high-voltage accumulator, wherein the electronic control unit is configured to:
determine an expected minimum range based on a state of charge of the high-voltage accumulator, and
determine a temperature-dependent bonus range based on a temperature of the high-voltage accumulator and the state of charge of the high-voltage accumulator,
wherein the bonus range is determined as an addition to the minimum range, and
wherein the bonus range is displayed instead of the minimum range if the minimum range has fallen to zero.