# US 2025/0145142 A1 · Vehicle

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- Number: US 2025/0145142 A1
- Document ID: US20250145142A1
- Status: Published application
- Kind: A1
- Application number: 18/919,742
- Filed: 2024-10-18
- Published: 2025-05-08
- Earliest claimed: 2023-11-08
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Tatsuya IMAMURA; Yoichiro ISAMI; Taro MOTEKI
- Web page: https://patentgrep.com/patent/US20250145142A1

## CPC

- B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
- G10K 15/02: Synthesis of acoustic waves (synthesis of speech G10L13/00)
- B60L 15/2054: {by controlling transmissions or clutches}
- B60Q 9/00: Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling}
- B60L 2240/12: Speed
- B60L 2240/507: Operating parameters
- B60L 2270/42: Means to improve acoustic vehicle detection by humans
- B60W 2520/105: Longitudinal acceleration
- B60W 2710/083: Torque
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- 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
- 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
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

A vehicle according to an embodiment of the present disclosure includes a transmission that is provided between a power source and drive wheels, and that is configured to switch a gear ratio manually by a user, and a sound generator that is configured to artificially generates a sound when the vehicle is traveling. The sound generator includes at least a processor. The processor is configured to execute at least one of raising a frequency of the sound the higher the gear ratio of the transmission is, and increasing a pressure of the sound the higher the gear ratio of the transmission is.

## Claims

### Claim 1

A vehicle, comprising:
a transmission that is provided between a power source and drive wheels, and that is configured to switch a gear ratio manually by a user; and
a sound generator that is configured to artificially generate a sound when the vehicle is traveling, wherein
the sound generator includes at least a processor and a speaker, and
the processor is configured to execute at least one of raising a frequency of the sound the higher the gear ratio is, and increasing a pressure of the sound the higher the gear ratio is.

### Claim 2 (depends on 1)

The vehicle according to claim 1, wherein the processor is configured to execute at least one of raising the frequency of the sound the higher a vehicle speed of the vehicle is, and increasing the pressure of the sound the higher the vehicle speed is.

### Claim 3 (depends on 1)

The vehicle according to claim 1, wherein the processor is configured to execute at least one of raising the frequency of the sound the greater an accelerator operation amount is, and increasing the pressure of the sound the greater the accelerator operation amount is.

### Claim 4 (depends on 1)

The vehicle according to claim 1, wherein the power source is an electric motor.

### Claim 5 (depends on 4)

The vehicle according to claim 4, further comprising a pseudo shifter that is configured to select one virtual shift position out of a plurality of virtual shift positions, wherein the processor is configured to execute at least one of raising the frequency of the sound the lower a stage of the virtual shift position selected by the pseudo shifter is, and increasing the pressure of the sound the lower the stage of the virtual shift position selected by the pseudo shifter is.

### Claim 6 (depends on 5)

The vehicle according to claim 5, further comprising a motor processor configured to change a torque of the electric motor in accordance with the virtual shift position selected by the pseudo shifter, a vehicle speed of the vehicle, and an accelerator operation amount,
wherein the motor processor is configured to
increase the torque at a same vehicle speed and a same accelerator operation amount, the lower the stage of the virtual shift position selected by the pseudo shifter is, and
limit a vehicle speed range at which the virtual shift position is selectable to a lower speed, the lower the stage of the virtual shift position selected by the pseudo shifter is.

### Claim 7 (depends on 4)

The vehicle according to claim 4, further comprising a pseudo clutch manipulator that is configured to be operated against a reaction force from a start point position to an end point position, wherein the processor is configured to execute at least one of temporarily lowering the frequency of the sound, and temporarily reducing the pressure of the sound, while the pseudo clutch manipulator is being operated from the end point position to the start point position.

### Claim 8 (depends on 7)

The vehicle according to claim 7, further comprising a motor processor that is configured to change a torque of the electric motor in accordance with an operation amount of the pseudo clutch manipulator, a vehicle speed of the vehicle, and an accelerator operation amount,
wherein the motor processor is configured to
reduce the torque when the pseudo clutch manipulator is at the end point position, as compared to partway in a process of returning from the end point position to the start point position, and
generate the torque partway in the process of returning the pseudo clutch manipulator from the end point position to the start point position.
