Hydraulic apparatus and control method for hydraulic apparatus

Abstract

The purpose of the present invention is to provide a hydraulic apparatus and a control method for the hydraulic apparatus that allows the calculation load on a control apparatus to be suppressed and the accuracy of brake fluid pressure control to be improved. If the plurality of nth opening / closing operation of an adjusting valve is performed within a preset period, the control apparatus determines the duration time of the open / closed state of the adjusting valve for this time, on the basis of the pressure value of a wheel cylinder in the plurality of nth opening / closing operation of the adjusting valve and the target pressure value of the wheel cylinder in the opening / closing operation of the adjusting valve performed prior to the plurality of nth opening / closing operation within the period, and performs the opening / closing operation of the adjusting valve for this time on the basis of the duration time.

Description

technical field [0001] The invention relates to a hydraulic device and a control method of the hydraulic device. Background technique [0002] In a vehicle such as a two-wheeled motor vehicle, when an occupant of the vehicle operates a brake lever, the pressure in a brake circuit filled with brake fluid changes, and a braking force can be applied to the wheels. Also, as a device for generating a braking force on a wheel, there is a device in which a hydraulic device including an openable and closable regulating valve, a pump device that moves in conjunction with the regulating valve, and the like is incorporated in a vehicle. The hydraulic device is electronically controlled to automatically operate to increase or decrease the pressure in the brake circuit to control the braking force applied to the wheels. [0003] Here, the performance of the pump device may vary depending on the outdoor air temperature, etc., and it may be difficult to ensure the accuracy of the pressure...

AI Technical Summary

Problems solved by technology

When the control valve is opened and closed once per cycle, if the error is large, the pressure of the cylinder after the opening and closing operation will easily exceed the target pressure of the cylinder, making it difficult to ensure the accuracy of pressure control.

[0006] In this way, there is a problem that, as a factor other than the change in the capacity of the pump device based on the outdoor air temperature, there is also a factor of error such as the difference between the target pressure of the cylinder and the current pressure of the cylinder, etc., and the pressure control of the hydraulic device is difficult. Ensure accuracy

However, in this proposal, there is a problem that the calculation frequency of the target pressure increases and the calculation load of the control device increases.

Images