Apparatus and method of producing a virtual after-burn effect using a controller in an electric vehicle, may include receiving, by the controller, vehicle driving information during vehicle driving, determining, by the controller, virtual variable information in an internal combustion engine on the basis of the input vehicle driving information, determining, by the controller, a virtual after-burn effect characteristic on the basis of the virtual variable information in an internal combustion engine, outputting, by the controller, a control signal for producing the virtual after-burn effect on the basis of the virtual after-born effect characteristic information, and controlling, by the controller, an operation of an effect-production apparatus configured for producing the virtual after-burn effect on the basis of the control signal.

There is provided a vehicle notification sound generation system mounted on a self-driving capable electric bus, and the system has a speaker that outputs a verbal speech about arrival of the electric bus at a destination and outputs a non-verbal sound corresponding to a state of acceleration/deceleration of the electric bus before acceleration/deceleration operation or during acceleration/deceleration of the electric bus.

Safety communication system for heavy equipment comprising a voice input device in electrical communication with a processor, an input controller in electrical communication with the processor, a plurality of audio output devices in electrical communication with the processor, a data recorder in electrical communication with the processor, and a non-transitory memory having instructions that, in response to an execution by the processor, cause the processor to receive an audio communication from the voice input device, process the audio communication, record the audio communication on to the data recorder, and output the audio communication via the plurality of audio output devices are disclosed. Methods of conveying safety communication on a work site are also disclosed.

A vehicle includes an accelerator sensor that detects an amount of operation of an accelerator; a vehicle status sensor that detects a vehicle status; an engine controller that controls an internal combustion engine based on a signal from the accelerator sensor and a signal from the vehicle status sensor; a sound controller that generates an engine sound based on the amount of operation of the accelerator and the vehicle status; and a speaker that is communicably connected to the sound controller and outputs the engine sound. The sound controller includes an engine sound controller that sets a volume of the engine sound to a value that is greater than zero when the amount of operation of the accelerator is zero and the vehicle status is a predetermined status.

An air inlet device for a coding device of an electric vehicle, having an air inlet duct with a duct wall delimiting a duct volume and at least one duct opening for the admission of ambient air for guiding to the cooling device. An acoustic, device for pedestrian protection is arranged in the duct wall in a flow-neutral manner with respect to the flow of ambient air, with a speaker device for generating a protective noise.

A vehicle includes an accelerator sensor that detects an amount of operation of an accelerator; a vehicle status sensor that detects a vehicle status; an engine controller that controls an internal combustion engine based on a signal from the accelerator sensor and a signal from the vehicle status sensor; a sound controller that generates an engine sound based on the amount of operation of the accelerator and the vehicle status; and a speaker that is communicably connected to the sound controller and outputs the engine sound. The sound controller includes an engine sound controller that sets a volume of the engine sound to a value that is greater than zero when the amount of operation of the accelerator is zero and the vehicle status is a predetermined status.

A method of implementing characteristics of an ICE vehicle in an EV, and configured for implementing a feeling of operation of a driving system and a feeling of driving of an ICE vehicle in an electric vehicle includes determining a virtual gear shifting type and starting virtual gear shifting, determining magnitude of a virtual effect while the virtual gear shifting is performed, determining an amount of correction of the magnitude of the virtual effect based on the virtual gear shifting type and state information related to the virtual gear shifting while the virtual gear shifting is performed, correcting the magnitude of the virtual effect by the amount of correction of the magnitude of the virtual effect while the virtual gear shifting is performed, and controlling an operation of a virtual effect generation device according to a virtual effect signal including the corrected magnitude of the virtual effect.

A sound synthesis system and method are provided for an electric or hybrid electric vehicle. The system receives an audio signal from an inverter of the vehicle comprising an analog waveform, a digital waveform, or a parameter. The audio signal from the inverter is synthesized and combined with another audio signal via at least one of combination, superimposition, mixing, multiplication, and adding, and the combined signal is amplified and output as a synthesized audio signal or as a visual display of a waveform of the amplified, combined signal.

A control method for a hybrid vehicle having an engine and a motor as driving power sources includes the steps f: checking, by a controller, a driving mode of the hybrid vehicle in real-time; when the driving mode of the hybrid vehicle is a motor driving mode (electric vehicle mode: EV mode), outputting, by the controller, a first sound profile to a sound device of the hybrid vehicle, the first sound profile being calculated by the controller based on a motor RPM and a motor load; and when the driving mode of the hybrid vehicle is an engine driving mode (hybrid electric vehicle mode: HEV mode), outputting, by the controller, a second sound profile to the sound device of the hybrid vehicle, the second sound profile being calculated by the controller based on engine operation sounds.

Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is allocated to vehicle axles responsive to wheel torques of respective vehicle axles in response to an anti-lock braking system being activated. Additionally, friction braking torque is allocated to vehicle axles responsive to the anti-lock braking system being activated.