Hydrostatic drive control device and vehicle control method

By collecting power information in real time and calculating and adjusting the displacement, the problems of engine back-drag and low efficiency in hydrostatic drive are solved, and precise matching of the power transmission structure and efficiency improvement are achieved.

CN119160107BActive Publication Date: 2025-09-26SANY MARINE HEAVY INDUSTRY CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202411280542.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-09-26
Estimated Expiration
2044-09-12

AI Technical Summary

Technical Problem

Existing hydrostatic drive control methods have problems with engine backdraft and low drive efficiency. Especially during acceleration and deceleration, the mismatch between system flow and motor speed leads to jerking and driving shock.

Method used

The power acquisition module collects the speed information of the engine, hydraulic motor and axle in real time, the vehicle control module calculates the adjustment displacement of the pump and motor, and the execution module adjusts the power transmission structure to match the optimal transmission amount during the vehicle control process.

Benefits of technology

The real-time response of the power transmission structure under hydrostatic drive is achieved, driving impact and engine back-drag are reduced, and the efficiency of hydrostatic drive is improved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention provides a hydrostatic drive control device and a vehicle control method. The hydrostatic drive control device includes: a power acquisition module connected to a vehicle's power transmission structure and configured to acquire power from the power transmission structure to obtain power information, which is used to characterize the power information of the vehicle's power transmission structure under hydrostatic drive; a vehicle control module connected to the power acquisition module and configured to receive the power information and, based on the power information, determine an adjustment displacement for the power transmission structure, wherein the adjustment displacement includes a pump adjustment displacement and a motor adjustment displacement; and an execution module connected to the vehicle control module and configured to receive the adjustment displacement and, based on the adjustment displacement, control the power transmission structure to match the optimal transmission amount during vehicle control. This solves the technical problem of engine backdraft and reduced hydrostatic drive efficiency.
Need to check novelty before this filing date? Find Prior Art