Control device and control method for the drive unit of a windshield wiper system
First Claim
1. A control device (160) for controlling a drive unit (120) for at least one wiper arm (140) of a vehicle windshield wiper system (100), the control device (160) being designed to determine at least one load variable (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of a ratio of the determined load variable (L) to at least one load threshold value (LS), characterized in that the control device (160) is designed to perform the setting of the wiping frequency (WH) depending on a present traveling velocity (v) of the vehicle, and wherein the control device (160) is designed to determine the load variable (L) on the basis of a model which simulates a present load state of the drive unit (120), the control device (160) further being designed to reduce the wiping frequency (WH) when the load variable (L) determined in the process exceeds a predetermined load threshold value (LS).
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Accused Products
Abstract
The invention relates to a control device (160) for a drive unit (120) of a vehicle windshield wiper system (100) comprising at least one wiper arm (140). The control device (160) is designed to determine a load quantity (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of the ratio of the load quantity (L) to at least one load threshold value (LS). Furthermore, the control device (160) is designed to set the wiping frequency (WH) depending on the current speed (v) of the vehicle.
27 Citations
18 Claims
- 1. A control device (160) for controlling a drive unit (120) for at least one wiper arm (140) of a vehicle windshield wiper system (100), the control device (160) being designed to determine at least one load variable (L) of the drive unit (120) and to set the wiping frequency (WH) of the wiper arm (140) on the basis of a ratio of the determined load variable (L) to at least one load threshold value (LS), characterized in that the control device (160) is designed to perform the setting of the wiping frequency (WH) depending on a present traveling velocity (v) of the vehicle, and wherein the control device (160) is designed to determine the load variable (L) on the basis of a model which simulates a present load state of the drive unit (120), the control device (160) further being designed to reduce the wiping frequency (WH) when the load variable (L) determined in the process exceeds a predetermined load threshold value (LS).
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15. A windshield wiper system (100) for a vehicle comprising a drive unit (120) for at least one wiper arm (140) and a control device (160) for the drive unit (120), the control device (160) being designed to determine at least one load variable (L) of the drive unit (120) and to set a wiping frequency (WH) of the wiper arm (140) on the basis of a ratio of the determined load variable (L) to at least one load threshold value (LS), characterized in that the control device (160) is designed to perform the setting of the wiping frequency (WH) depending on a present traveling velocity (v) of the vehicle, and wherein the control device (160) is designed to determine the load variable (L) on the basis of a model which simulates a present load state of the drive unit (120), the control device (160) further being designed to reduce the wiping frequency (WH) when the load variable (L) determined in the process exceeds a predetermined load threshold value (LS).
- 16. A method for controlling a drive unit (120) of a windshield wiper system (100) of a vehicle having at least one wiper arm (140), at least one load variable (L) of the drive unit (120) being determined, and a wiping frequency (WH) of the wiper arm (140) being set on a basis of a ratio of the determined load variable (L) to at least one load threshold value (LS), characterized in that the setting of the wiping frequency (WH) takes place depending on a present traveling velocity (v) of the vehicle, and the load variable (L) is determined on the basis of a model which simulates a present load state of the drive unit (120), and the wiping frequency (WH) is reduced when the load variable (L) determined in the process exceeds a predetermined load threshold value (LS).
Specification