WO2023242866A1 - Production de son dans un véhicule et procédé associé - Google Patents

Production de son dans un véhicule et procédé associé Download PDF

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Publication number
WO2023242866A1
WO2023242866A1 PCT/IN2023/050558 IN2023050558W WO2023242866A1 WO 2023242866 A1 WO2023242866 A1 WO 2023242866A1 IN 2023050558 W IN2023050558 W IN 2023050558W WO 2023242866 A1 WO2023242866 A1 WO 2023242866A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
sub
control unit
real time
predetermined
Prior art date
Application number
PCT/IN2023/050558
Other languages
English (en)
Inventor
Roy HILLOL KUMAR
Rajagopal Jeyapaal Bhaarath
Original Assignee
Tvs Motor Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tvs Motor Company Limited filed Critical Tvs Motor Company Limited
Publication of WO2023242866A1 publication Critical patent/WO2023242866A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching

Definitions

  • the present subject matter relates generally to a vehicle. More particularly but not exclusively, the present subject matter relates to a system in a vehicle for alerting the nearby environment and a method thereof.
  • an electric vehicle or hybrid vehicles which uses one or more battery assemblies that provides electrical power to run a motor which in turn rotates one or more wheels of the vehicle.
  • an IC engine generates a sound during its operation.
  • the sound in an IC (internal combustion) engine generates due to combustion and the sound increases with the increasing speed of the vehicle.
  • the sound of the IC engine vehicle is attenuated using a muffler of the vehicle, however the sound is never reduced to nil or zero. Although this sound is a concern for noise pollution and therefore, controlled through homologation regulations.
  • IC engine vehicles are the major portion of transport around the world, customers and pedestrians are used to this sound.
  • Another purpose of the sound is that it creates an awareness or assists in creating an alerting the surrounding about the vehicle’s presence. For example, when a vehicle is approaching the pedestrians or other vehicles, the sound created by the vehicle assists in alerting the surrounding environment about its presence.
  • the sound assists in avoiding accident on road.
  • the electrical vehicles have lower to almost no sound which is generated when the vehicle is being operated.
  • the lower sound in the electric vehicle is an advantage in terms of noise pollution, but a potential problem for pedestrians or a blind person who is walking on a road and is not much aware about the surrounding vehicles.
  • a soundless vehicle fails to create an awareness or alert in the surrounding environment about it’s presence or approach, due to which there are chances of accidents.
  • Fig 1-4 exemplarily illustrates a block diagram of the sound generation system in a vehicle in accordance with an embodiment of the present invention
  • Fig 5 exemplarily illustrates a flow chart of the method of sound generation in a vehicle in accordance with an embodiment of the present invention
  • the objective of the present invention is to enable emitting a pseudo sound based upon operation of the vehicle which is powered by the electric motor such as EV or HEV.
  • a camera is installed in the front potion of the vehicle which is configured to alert the driver about pedestrians who are not looking at the vehicle.
  • this mechanism is complex as it will fail to alert the rider’s who are blind, because they may look at the vehicle but may not realize vehicle’s approach towards them.
  • a system is configured to activate one or more sub-systems of a vehicle, the system comprising: a prime mover, the prime mover is configured to power the vehicle; a plurality of sensing units, wherein said plurality of sensing units being configured to measure real time state operating parameter(s) of said vehicle; said plurality of sensing units sensing units being connected to one or more sub systems of the vehicle; a control unit, the control unit being configured to receive input(s) from the plurality of sensing units, wherein the control unit being configured to activate one or more sub systems based on said real time state operating parameter(s).
  • the activation of one or more subsystems is at least based on comparison of the real time state operating parameter(s) and the predetermined operating condition(s).
  • the one or more subsystems being activated when an object being detected within a predetermined range of the vehicle.
  • the predetermined operating condition(s) includes a predetermined throttle opening , a predetermined revolutions per minute (RPM) of said prime mover, and a predetermined mode of operation, wherein the predetermined throttle opening being 0 percent- 100 percent of the maximum throttle range, the predetermined revolutions per minute (RPM) being in the range of 0-700 RPM, and the mode of operating of the vehicle being based on speed of the vehicle.
  • RPM revolutions per minute
  • the plurality of sensing units includes a throttle sensing unit (102) configured to detect an angle of throttle opening of the vehicle, a mode sensing unit (110), a location sensing unit (302), a motion sensing unit (202), LIDAR, RADAR, an image capturing device.
  • control unit (108) being configured with a predefined lookup table to activate one or more sub system (106) of the vehicle based on comparison of one of the real time state operating parameter values with predetermined state operating parameter(s) values.
  • control unit being configured with an artificial intelligence model, wherein the artificial intelligence models being configured to enable the control unit (108) to activate the one or more sub-system (106) based on input(s) from the plurality of sensing units.
  • said real time state operating parameters values includes a real time throttle opening, a real time revolutions per minute of said prime mover, and a real time mode of operation.
  • the predefined look up table being a predefined three-dimensional matrix of the predetermined state operating parameter(s) values and a corresponding outputs value for activating the one or more sub-system (106) by the control unit (108).
  • the sub-system (106) includes a dedicated speaker, a horn, lighting systems.
  • the motion sensor (202) being configured to send real time inputs to the control unit (108) relating presence of living beings in a pre-defined radius of the vehicle, wherein the pre-defined radius of the vehicle being in the range of 0 meters to 50 meters from the front most portion of the vehicle.
  • the location sensor (302) being configured to send real time location inputs to the control unit (108) relating the pre-defined radius geographical location of the vehicle, wherein the pre-defined radius of the vehicle being in the range of 0 meters to 50 meters from the front most portion of the vehicle.
  • control unit (108) being configured to deactivate the sub-system (106) when the vehicle being in a predefined zone, the predefined zone being a silent zone.
  • system (100) includes a user switch, wherein the user switch enables a user to activate and deactivate the system (100).
  • sub-system (106) being at least one of a piezoelectric sub-system (106) and an electro-magnetic sub-system (106).
  • Fig 1-Fig. 4 exemplarily illustrates a block diagram of the system (100) in a vehicle in accordance with an embodiment of the present invention.
  • the fig. 1. to fig. 4 are explained together for brevity.
  • the system (100) for the vehicle comprises: a prime mover (104) which is configured to power the vehicle; a plurality of sensing units, wherein the plurality of sensing units is configured to measure real time state operating parameter(s) of the vehicle.
  • the plurality of sensing units are connected to one or more sub systems of the vehicle.
  • the system also includes a control unit (108) which is configured to receive input(s) from the plurality of sensing units.
  • the control unit (108) is configured to activate one or more sub systems (106) based on the real time state operating parameter(s) of the vehicle.
  • the one or more subsystems is activated based on comparison of at least one predetermined operating condition(s) and the real time state operating parameter(s).
  • the predetermined operating condition(s) includes a predetermined throttle opening , a predetermined revolutions per minute (RPM) of said prime mover, and a predetermined mode of operation.
  • the predetermined throttle opening ranges between 0 percent- 100 percent of the maximum throttle range
  • the predetermined revolutions per minute (RPM) is in the range of 0-700 RPM
  • the mode of operating of the vehicle being based on speed of the vehicle.
  • the mode of the vehicle could be ECO mode wherein the speed of the vehicle is below 45kmph, and the power mode, wherein the speed of the vehicle is more than 45kmph.
  • the plurality of sensing units includes a throttle sensing unit (102) configured to detect an angle of throttle opening of the vehicle, a mode sensing unit (110) configured to detect mode of operation of the vehicle, a location sensing unit configured to sense location of the vehicle (302), a motion sensing unit (202), LIDAR, RADAR, an image capturing device.
  • the one or more subsystems is activated when an object being detected by the plurality of sensors within a predetermined range of the vehicle .
  • the predetermined range being between 0-50 meters of the vehicle.
  • the motion sensor (202) is configured to send real time inputs to the control unit (108) relating presence of living beings in a predefined radius of the vehicle.
  • the pre-defined radius of the vehicle is in the range of 0 meters to 50 meters from the front most portion of the vehicle.
  • the location sensor (302) is configured to send real time location inputs to the control unit (108) relating the pre-defined radius geographical location of the vehicle.
  • the control unit (108) is configured to deactivate the sub-system (106) when the vehicle being in a predefined zone, the predefined zone is a silent zone such as school, hospitals etc.
  • the control unit (108) is configured with a predefined lookup table based on predetermined state operating parameter(s) values.
  • the control unit (108) to activate one or more sub system (106) of the vehicle based on comparison of one of the real time state operating parameter values with predetermined state operating parameter(s) values.
  • the real time state operating parameters values include a real time throttle opening, a real time revolutions per minute of said prime mover, and a real time mode of operation.
  • control unit (108) is configured with an artificial intelligence model.
  • the artificial intelligence models are configured to enable the control unit (108) to activate one or more sub-system (106) based on input(s) from the plurality of sensing units.
  • the system (100) also includes a user switch, wherein the user switch enables a user to activate and deactivate the system (100).
  • the sub-system (106) is a dedicated speaker, wherein the dedicated speaker could be one of a piezoelectric sub-system (106) and an electro-magnetic sub-system (106).
  • the sub-system (106) is a dedicated speaker which is configured to provide output or produce acoustics or sound based upon output signal generated by the control unit (108).
  • the sub-system can generate plurality of sounds based on the vehicle riding conditions. Since the control unit (108) and the output unit (106) are not dependent on storage unit which stores plurality of sounds, the system (100) is not dependent on synchronization of the vehicle speed.
  • the sub-system (106) could be of either a piezo-electric speaker or an electro-magnetic speaker.
  • the piezo-electric speaker the voltage is varied with speed of the vehicle to generate plurality of sounds.
  • the piezo-electric speaker is a speaker that generates an electric charge when subjected to mechanical stress or pressure.
  • the piezoelectric speaker that can produce sound by applying an alternating voltage through the control unit (108).
  • the current is varied with speed to generate plurality of sounds.
  • the control unit varies an electrical current flowing through a coil in the electromagnetic speaker to produce plurality of sounds electromagnetic speaker
  • the mode unit (110) is particularly implemented in hybrid electric vehicle which has multiple modes of operation such as pure eco mode, hybrid mode. In hybrid mode both the motor and the fuel powers powering the engine, and in pure eco mode only the motor powers the vehicle. Each mode of operation of the vehicle is differentiated by the maximum speed, rate of acceleration, regenerative braking and alerts.
  • the motion sensor (202) is positioned in front of the vehicle to have faster response.
  • the location sensor (302) is kept away from metal parts to avoid signal interference.
  • the control unit (108) is electrically connected to output unit (106), one or more sensor (102) and the prime mover (104).
  • the system (100) can be used for emergency sound generation after accident for grasping attention of nearby help.
  • Fig 5 exemplarily illustrates a flow chart of the method of actuating a sub-system (106) of the vehicle.
  • the control unit (108) receives one or more real time state operating parameter values from the plurality of sensing unit at step 604.
  • the control unit compares the one or more real time state operating parameter values with a predetermined real time state operating parameter values. Based on the comparison the control unit (108) activates one or more sub systems (106) of the vehicle.
  • the control unit (108) can generate output of current, voltage and signal to actuate the one or more sub-systems for generating plurality of outputs therefrom.
  • the system includes at least one of a motion sensor (202), and a location sensor.
  • the control unit (108) is configured to deactivate the system (100) while the vehicle is in a silent zone as per step 610 and 612. Further, as per another embodiment, the control unit (108) is configured to activate the system when a motion is determined within a predefined at a pre-defined radius of the vehicle. The pre-defined radius of the vehicle is in the range of 0 meters to 50 meters from the front most portion of the vehicle.
  • the present invention provides the system (100) which eliminates the prior art problems and existing challenges by generating sound from an EV with the increase in vehicle speed helping the pedestrians aware of the approaching vehicles.
  • the proposed system (100) generates sound to alert the pedestrians and living beings to avoid accidents.
  • the sound of the system (100) increases with speed of the vehicle to give a feel of the standard engine of a vehicle to the rider. Further, the sound of vehicle can be customized, and the sound of vehicle is turned-off automatically the vehicle is at silent zones e.g., hospital, school.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

5 Système (100) conçu pour activer un ou plusieurs sous-systèmes (106) d'un véhicule, le système (100) comprenant : un moteur principal (104), le moteur principal (104) étant conçu pour propulser le véhicule ; une pluralité d'unités de détection, ladite pluralité d'unités de détection étant conçue pour mesurer, en temps réel, un ou plusieurs paramètres de fonctionnement d'état dudit véhicule ; ladite pluralité d'unités 10 de détection étant connectée à un ou plusieurs sous-systèmes du véhicule ; une unité de commande, l'unité de commande étant conçue pour recevoir une ou plusieurs entrées provenant de la pluralité d'unités de détection, l'unité de commande étant conçue pour activer un ou plusieurs sous-systèmes sur la base dudit ou desdits paramètres de fonctionnement d'état en temps réel. 15
PCT/IN2023/050558 2022-06-13 2023-06-13 Production de son dans un véhicule et procédé associé WO2023242866A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202241033636 2022-06-13
IN202241033636 2022-06-13

Publications (1)

Publication Number Publication Date
WO2023242866A1 true WO2023242866A1 (fr) 2023-12-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2023/050558 WO2023242866A1 (fr) 2022-06-13 2023-06-13 Production de son dans un véhicule et procédé associé

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120130580A1 (en) * 2010-05-26 2012-05-24 Asako Omote Artificial engine sound control unit, approaching vehicle audible system, and electric vehicle having them
US20150061850A1 (en) * 2012-03-16 2015-03-05 Mitsubishi Electric Corporation Notification sound control unit of approaching vehicle audible system
KR102338375B1 (ko) * 2020-12-21 2021-12-10 재단법인 자동차융합기술원 전기차의 인접 차량 및/또는 보행자에게 정보전달을 위한 구동 장치 및 이를 이용한 전기차의 구동 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120130580A1 (en) * 2010-05-26 2012-05-24 Asako Omote Artificial engine sound control unit, approaching vehicle audible system, and electric vehicle having them
US20150061850A1 (en) * 2012-03-16 2015-03-05 Mitsubishi Electric Corporation Notification sound control unit of approaching vehicle audible system
KR102338375B1 (ko) * 2020-12-21 2021-12-10 재단법인 자동차융합기술원 전기차의 인접 차량 및/또는 보행자에게 정보전달을 위한 구동 장치 및 이를 이용한 전기차의 구동 방법

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