# US 11,440,405 B2 · Method for operating a motor vehicle

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- Number: US 11,440,405 B2
- Document ID: US11440405B2
- Status: Granted
- Kind: B2
- Application number: 16/818,181
- Filed: 2020-03-13
- Published: 2020-09-24
- Granted: 2022-09-13
- Earliest claimed: 2019-03-18
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Frank Meier; Frank Brenner; Michael Nau
- Web page: https://patentgrep.com/patent/US11440405B2

## CPC

- B60K 28/10: responsive to conditions relating to the vehicle
- F01N 9/00: Electrical control of exhaust gas treating apparatus (monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00; conjoint electrical control of two or more combustion engine functions F02D43/00)
- F01N 3/2013: {using electric or magnetic heating means}
- F01N 3/2033: {using a fuel burner or introducing fuel into exhaust duct}
- F01N 11/007: {the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus}
- G07C 5/0816: {Indicating performance data, e.g. occurrence of a malfunction}
- F01N 2900/104: Battery status
- F01N 2900/1602: Temperature of exhaust gas apparatus
- 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
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE

## Abstract

In a method for operating a motor vehicle having an internal combustion engine, pre-heating measures (7) for reaching operating temperatures for components of the exhaust-gas post-treatment system and/or for a lambda probe of the motor vehicle are provided prior to the departure (10) of the motor vehicle. The activation of a transducer (1) by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as the trigger for the pre-heating measures (7), in particular for avoiding an unnecessary initiation of pre-heating measures.

## Claims

### Claim 1

A method for operating a motor vehicle having an internal combustion engine, wherein pre-heating measures (7) for reaching operating temperatures for components of the exhaust-gas post-treatment system, for a lambda probe of the motor vehicle, or both are performed prior to the departure (10) of the motor vehicle, wherein the activation of a transducer (1) by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as a trigger of the pre-heating measures (7), wherein the departure of the motor vehicle is delayed (11) as long as the operating temperature envisaged for components of the exhaust-gas post-treatment system, for the lambda probe, or for both have not yet been reached by the pre-heating measures.

### Claim 2

A method for operating a motor vehicle having an internal combustion engine, wherein pre-heating measures (7) for reaching operating temperatures for components of the exhaust-gas post-treatment system, for a lambda probe of the motor vehicle, or both are performed prior to the departure (10) of the motor vehicle, wherein the activation of a transducer (1) by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as a trigger of the pre-heating measures (7), wherein the pre-heating measures are terminated in the event that no departure takes place within a predefinable temporal period despite the explicit announcement of an impending departure.

### Claim 3

An electronic control apparatus configured to control operation of a motor vehicle having an internal combustion engine, wherein pre-heating measures (7) for reaching operating temperatures for components of the exhaust-gas post-treatment system, for a lambda probe of the motor vehicle, or both are performed prior to the departure (10) of the motor vehicle, wherein the activation of a transducer (1) by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as a trigger of the pre-heating measures (7), and wherein the departure of the motor vehicle is delayed (11) as long as the operating temperature envisaged for components of the exhaust-gas post-treatment system, for the lambda probe, or for both have not yet been reached by the pre-heating measures.

### Claim 4 (depends on 3)

The electronic control apparatus according to claim 3, wherein the pre-heating measures are terminated in the event that no departure takes place within a predefinable temporal period despite the explicit announcement of an impending departure.

### Claim 5 (depends on 3)

The electronic control apparatus according to claim 3, wherein, in the event of a requested departure of the motor vehicle without any prior activation of the transducer by the driver, the departure of the motor vehicle, the engine start, or both are delayed and pre-heating measures (7) are performed.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the pre-heating measures are terminated in the event that no departure takes place within a predefinable temporal period despite the explicit announcement of an impending departure.

### Claim 7 (depends on 1)

The method according to claim 1, wherein, in the event of a requested departure of the motor vehicle without any prior activation of the transducer by the driver, the departure of the motor vehicle, the engine start, or both are delayed and pre-heating measures (7) are performed.