Compensation of reduced braking effect of a hydraulic brake system for a land craft
First Claim
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1. Hydraulic brake system for a land vehicle comprising:
- a control unit with inputs to receive input parameters, which indicate operational states of the land vehicle, and outputs to output control signals for the brake system,at least one wheel brake,at least one hydraulic fluid storage device to store hydraulic fluid,a controllable pump for controlled feeding of hydraulic fluid out of the hydraulic fluid reservoir to the at least one wheel brake, anda predetermined holding capacity for hydraulic fluid within the brake system,the control unit being set up to determine a current holding capacity for hydraulic fluid from the input parameters, and if the current holding capacity is increased compared with the predetermined holding capacity, to provide control signals for the pump, to feed a quantity of hydraulic fluid corresponding at least to the capacity increase to the at least one wheel brake.
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Abstract
The invention relates to a hydraulic brake system and a method for controlling a hydraulic brake system for a land vehicle having a predetermined holding capacity for hydraulic fluid and at least one wheel brake. The invention is characterized by detecting if a current holding capacity of the brake system has increased in relation to the predetermined holding capacity and, if so, by feeding hydraulic fluid to the at least one wheel brake in a controlled manner and an amount corresponding at least to the increase in capacity.
14 Citations
24 Claims
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1. Hydraulic brake system for a land vehicle comprising:
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a control unit with inputs to receive input parameters, which indicate operational states of the land vehicle, and outputs to output control signals for the brake system, at least one wheel brake, at least one hydraulic fluid storage device to store hydraulic fluid, a controllable pump for controlled feeding of hydraulic fluid out of the hydraulic fluid reservoir to the at least one wheel brake, and a predetermined holding capacity for hydraulic fluid within the brake system, the control unit being set up to determine a current holding capacity for hydraulic fluid from the input parameters, and if the current holding capacity is increased compared with the predetermined holding capacity, to provide control signals for the pump, to feed a quantity of hydraulic fluid corresponding at least to the capacity increase to the at least one wheel brake. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Method of controlling a hydraulic brake system for a land vehicle with at least one wheel brake and a predetermined holding capacity for hydraulic fluid within the brake system, with the following steps:
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determining whether a current holding capacity of the brake system has increased compared with the predetermined holding capacity, and if so controlled feeding of hydraulic fluid to the at least one wheel brake, in a quantity corresponding at least to the capacity increase. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification