A vibration providing method for a vehicle is capable of classifying various dangerous situations and warning of a dangerous situation based on the dangerous situation and a driving situation. The vibration generating method includes steps of: collecting, by a controller, information for warning of a dangerous situation of a vehicle and determining whether to warn of the dangerous situation, based on the collected information; determining, by the controller, a vibration property in accordance with the dangerous situation based on the collected information; generating, by the controller, a warning signal corresponding to the dangerous situation based on the determined vibration property; generating and outputting, by the controller, a control signal for generating vibration having the vibration property based on the generated warning signal; and operating a vibration actuator, installed in a seat, based on the outputted control signal and generating the vibration, representing the dangerous situation, through the seat.

A pseudo driving sound playback system includes a server and an in-vehicle device. The server includes a database of pseudo sound data sets in which sound elements of engine sound are associated with each of a plurality of predefined driving states for each of a plurality of passenger gasoline vehicle models. The in-vehicle device determines one of a plurality of vehicle models based on received input of a user, downloads a pseudo sound data set of the vehicle model from the server, selects a sound element according to the detected driving state from the pseudo sound data set, and sequentially outputs the sound element as sound from a speaker.

A method of playing a virtual after-burn sound in an electric vehicle is provided. The method includes acquiring driver tendency information generated based on information of music played in a mobile phone and collecting driving variable information for playing a virtual sound during operation of the electric vehicle. Additionally, characteristics of a virtual after-burn sound are determined based on the collected driving variable information. The characteristics of the virtual after-burn sound are corrected according to the acquired driver tendency information. An after-burn signal is generated for playing the virtual after-burn sound based on information about the corrected characteristics of the virtual after-burn sound and operation of sound equipment is adjusted according to the created after-burn signal such that a virtual after-burn sound discriminated according to the driver tendency is played and output from the sound equipment.

There is provided a mobile object including an imaging unit configured to capture a perimeter of the mobile object, a speaker configured to be capable of controlling directivity, a determination unit configured to determine whether the mobile object is in a driving mode, and a speaker control unit configured to control the speaker in the driving mode in a manner that predetermined audio is output toward a warning target that is recognized based on a captured image captured by the imaging unit, and to control the speaker in a non-driving mode in a manner that the predetermined audio is output in a non-directional way.

A vehicle sound synthesis system is provided with a loudspeaker and a controller. The loudspeaker projects sound indicative of synthesized engine noise (SEN) within a cabin of a vehicle in response to receiving a SEN signal. The controller is programmed to generate the SEN signal; and receive a first input indicative of an engine start command. The controller is further programmed to, modulate a characteristic of the SEN signal to align with a corresponding engine operating characteristic during starting conditions in response to the engine start command; and provide an adjusted SEN signal including the modulated characteristic to the loudspeaker.

A method of providing virtual sound in an electric vehicle, includes: collecting vehicle driving information for outputting the virtual sound; determining characteristics of the virtual sound based on the collected vehicle driving information; generating a virtual effect signal for outputting the virtual sound, based on the determined characteristics; generating a sound signal containing the characteristics, based on the virtual effect signal; collecting the generated sound signal to obtain a final sound signal corresponding to a vehicle rating selected according to setting information based on the preset vehicle rating and a sound correction algorithm; and outputting the virtual sound corresponding to the selected vehicle rating, according to the final sound signal.

The warning device (12) includes a warning light mechanism (16), that is configured so as to emit a flashing strobe light (20) that flashes at a frequency that is higher than 10 Hz.

A vehicle computing system may implement techniques to emit warning sounds from a vehicle to notify other entities in an environment with the vehicle of the vehicle operation. A vehicle computing system may be configured to emit warning sounds based on a speed associated with the vehicle. The vehicle computing system may determine a planned vehicle trajectory and that a speed corresponding to the planned vehicle trajectory is associated with the warning sound emission. The vehicle computing system may determine a time that the vehicle will be at the speed and may emit the warning sound substantially at the time. In some examples, the vehicle computing system may emit a different sound prior to the time and may transition to the warning sound associated with the speed at the time. By warning other entities of the vehicle operation, the warning sound emission system may improve the safety of vehicle operation.

An Audio Frequency Induction Loop receiving device, an Audio Frequency Induction Loop transmitting device, a system and a method for alerting a person with impaired hearing about a moving vehicle are disclosed. The Audio Frequency Induction Loop receiving device comprises an Audio Frequency Induction Loop receiver and a processing circuitry. The Audio Frequency Induction Loop receiver is configured to receive a signal via a magnetic field generated by the Audio Frequency Induction Loop transmitting device installed in the vehicle. The processing circuitry is configured to cause the Audio Frequency Induction Loop receiving device to detect the magnetic field generated by the Audio Frequency Induction Loop transmitting device and generate an alert signal for alerting about the moving vehicle.

In a vehicle control system (1) configured for autonomous driving, and having a control unit (15) configured to execute a stop process by which the vehicle is parked in a prescribed stop area when it is detected that the control unit or the driver has become incapable of properly maintaining a traveling state of the vehicle, the control unit determines if a person is present within a predetermined range from the vehicle according to information obtained by a surrounding condition acquiring unit (61), the control unit causing the external notification device (14) to generate the acoustic notification at a first notification volume when a person is present within the predetermined range, and at a second notification volume higher than the first notification volume when a person is not present within the predetermined range.