# US 10,871,093 B2 · Motor vehicle having a control apparatus for at least one loudspeaker of an exhaust system of the motor vehicle

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- Number: US 10,871,093 B2
- Document ID: US10871093B2
- Status: Granted
- Kind: B2
- Application number: 16/073,603
- Filed: 2017-02-23
- Published: 2019-05-30
- Granted: 2020-12-22
- Earliest claimed: 2016-02-27
- Assignees: Audi AG
- Applicants: Audi AG
- Inventors: Markus Rüegg
- Web page: https://patentgrep.com/patent/US10871093B2

## CPC

- F01N 1/065: {by using an active noise source, e.g. speakers}
- B60Q 5/00: Arrangement or adaptation of acoustic signal devices
- B60Q 5/008: {for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching}
- C07C 273/12: combined with the synthesis of melamine
- C07D 251/60: from urea or from carbon dioxide and ammonia
- C07D 251/62: Purification of melamine
- G10K 11/178: by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K 11/17883: {the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed}
- G10K 15/00: Acoustics not otherwise provided for
- H04R 29/001: {for loudspeakers (H04R29/007 takes precedence)}
- B01J 2219/00006: Large-scale industrial plants
- B01J 2219/00024: Revamping, retrofitting or modernisation of existing plants
- B60Y 2306/11: Noise generation, e.g. drive noise to warn pedestrians that an electric vehicle is approaching
- G10K 2210/1282: Automobiles
- G10K 2210/12822: Exhaust pipes or mufflers
- G10K 2210/51: Improving tonal quality, e.g. mimicking sports cars
- H04R 2499/13: Acoustic transducers and sound field adaptation 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)
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

## Abstract

Combustion gas of an internal combustion engine passes through an exhaust system to an outlet opening. A detection device generates a state signal that describes an engine noise of the internal combustion engine. A control apparatus actuates at least one loudspeaker to produce a sound at the outlet opening based on the state signal to compensate for the engine noise or produce another engine noise, independently of the state signal based on predetermined audio data and thereby to use the at least one loudspeaker to audibly output an advisory signal described by the audio data.

## Claims

### Claim 1

A motor vehicle, comprising:
doors;
a locking system for the doors;
an internal combustion engine producing a combustion gas during operation;
an exhaust system having at least one pipe taking away the combustion gas, during operation of the internal combustion engine, to at least one outlet opening of the exhaust system;
a sensing device generating a state signal, during operation of the internal combustion engine, that describes at least one of a current engine noise and a current operating parameter characterizing operation;
a detection device configured to detect a predetermined output situation, including at least one change of state of the locking system, and to generate a trigger signal in response to the predetermined output situation;
at least one loudspeaker configured to emit a sound into a respective pipe of the exhaust system toward the at least one outlet opening; and
a control apparatus configured to actuate the at least one loudspeaker to produce the sound based on the state signal to at least partially compensate for the current engine noise and/or to at least partially replace the current engine noise with a predetermined other engine noise, and, independently of the state signal, based on predetermined stored audio data, to audibly output an advice signal described by the audio data in response to the trigger signal that is independent of the state signal and generated in the predetermined output situation with a predetermined time delay.

### Claim 2 (depends on 1)

The motor vehicle as claimed in claim 1, wherein the control apparatus is configured to output the advice signal with the internal combustion engine switched off.

### Claim 3 (depends on 2)

The motor vehicle as claimed in claim 2, wherein the detection device is configured to detect as the predetermined output situation a parking phase in which the motor vehicle is parked and a driver has exited the motor vehicle.

### Claim 4 (depends on 1)

The motor vehicle as claimed in claim 1, wherein the detection device is configured to detect as the predetermined output situation a parking phase in which the motor vehicle is parked and a driver has exited the motor vehicle.

### Claim 5 (depends on 1)

The motor vehicle as claimed in claim 1,
further comprising an operator control device, and
wherein the detection device is configured to detect as the predetermined output situation a predetermined operating action by a user of the operator control device for the motor vehicle.

### Claim 6 (depends on 5)

The motor vehicle as claimed in claim 5,
further comprising a transmission having a reverse gear and at least one forward gear, and
wherein the detection device is configured to detect as the predetermined output situation the reverse gear selected with the internal combustion engine running.

### Claim 7 (depends on 5)

The motor vehicle as claimed in claim 5,
further comprising a chassis, and
wherein the control apparatus is configured to generate the advice signal only when at least one predetermined driving mode from multiple activable driving modes, each of which stipulates a different mode of operation of at least one of the internal combustion engine and the chassis of the motor vehicle, is activated in the motor vehicle.

### Claim 8 (depends on 1)

The motor vehicle as claimed in claim 1,
further comprising a chassis, and
wherein the control apparatus is configured to generate the advice signal only when at least one predetermined driving mode from multiple activable driving modes, each of which stipulates a different mode of operation of at least one of the internal combustion engine and the chassis of the motor vehicle, is activated in the motor vehicle.

### Claim 9 (depends on 1)

The motor vehicle as claimed in claim 1, wherein the control apparatus is configured to output an imitated heartbeat, as the advice signal.

### Claim 10 (depends on 1)

The motor vehicle as claimed in claim 1, further comprising a configuration device configured to set the audio data based on at least one of a user input and from among multiple predetermined audio data records.