Cancellation of noise of a wiper system in a vehicle
AssigneeValeo Systèmes d'Essuyage
InventorJacek Debski
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Abstract
A method of cancelling noise produced in a cabin of a vehicle by a wiper system. The method is implemented by a noise cancellation device and includes receiving feedforward data related to wiper noise. Such feedforward data can be issued from sensors collocated with elements of the wiper system, or from an ECU controlling motor operation of the wiper system. The method further includes generating a noise cancellation control signal based on the feedforward data and based on a model of propagation of the wiper noise in the cabin and transmitting the noise cancellation control signal to a speaker system of the vehicle.
Claims18
A method of cancelling noise produced in a cabin of a vehicle by a wiper system, said method being implemented by a noise cancellation device, and comprising:
- receiving feedforward data related to wiper noise;
- generating a noise cancellation control signal based on the feedforward data and based on a model of propagation of the wiper noise in the cabin;
- and
- transmitting the noise cancellation control signal to a speaker system of the vehicle, wherein the method is iterated, wherein the noise cancellation device stores at least the model of propagation of the wiper noise in the cabin, and wherein the noise cancellation device updates at least one of the models stored by machine learning based on the feedforward data and/or based on feedback data received from a sensor located in the cabin of the vehicle.
A noise cancellation device comprising:
- at least one interface arranged for receiving feedforward data related a noise produced by a wiper system of a vehicle comprising the noise cancellation device;
- a memory storing a model of propagation of the wiper noise in the cabin;
- a processor configured to generate a noise cancellation control signal, based on the feedforward data and on the model of propagation of wiper noise in the cabin;
- another interface arranged to transmit the noise cancellation control signal to a speaker system of the vehicle, wherein the receiving, generating, and transmitting are iterated, and wherein the processor is configured to update the models stored in the memory by machine learning based on the feedforward data and/or based on feedback data received from a sensor located in the cabin of the vehicle.
Dependencies are inferred from the claim text.