A cable-operated pneumatic braking system for tracked vehicles that preserves full mechanical steering capability

By designing a drive-by-wire pneumatic braking system for tracked vehicles that retains full mechanical control functions, the problems of high retrofitting costs, poor reliability, and insufficient emergency support for old tracked vehicle braking systems during unmanned transformation have been solved. This system achieves efficient and stable braking force transmission and emergency response, and is compatible with unified control for both manual and unmanned driving modes.

CN122275832APending Publication Date: 2026-06-26BEIJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2026-03-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The braking systems of old tracked vehicles face high costs and limited space during unmanned transformation. Automatic operation interferes with manual mechanical operation, resulting in poor reliability and stability of braking force transmission. Pneumatic braking control has low precision, insufficient emergency support, and a lack of unified coordination and control between manual and unmanned braking commands.

Method used

Design a drive-by-wire pneumatic braking system for tracked vehicles that retains full mechanical control functions, including a pneumatic braking module and a braking execution module. It adopts a single-acting braking transmission component that is unidirectionally linked to and separable from the mechanical braking base component, a dual-circuit pneumatic supply circuit, a dual-chamber braking air chamber component, and an emergency unlocking drive component. The vehicle controller realizes electronic control coordination.

Benefits of technology

It enables manual mechanical braking to override pneumatic brake-driven braking, improving the efficiency and stability of braking force transmission. It provides dual manual and electric parking brake unlocking methods, enhancing emergency response capabilities and the stability of air pressure supply, and is compatible with unified control of manual and autonomous driving modes.

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Abstract

This invention relates to a drive-by-wire pneumatic braking system for tracked vehicles that retains full mechanical control functionality. Belonging to the field of high-speed tracked vehicle braking technology, it solves several problems in existing technologies, including high costs and limited space for unmanned drive-by-wire retrofitting of braking systems for older tracked vehicles, interference between automatic and manual mechanical control, poor reliability and stability of braking force transmission, low precision of pneumatic braking control, insufficient emergency support, and a lack of unified coordination between manual and unmanned braking commands. This invention includes a pneumatic braking system and a braking execution module. The braking chamber assembly is unidirectionally linked to the mechanical braking base assembly via a single-acting braking transmission assembly and can be separated, achieving pneumatic drive-by-wire braking. When separated, the mechanical assembly independently performs manual braking, enabling manual braking to override pneumatic braking. The system also features a dual-circuit pneumatic supply, emergency unlocking, and electronic control coordination structure, adapting to the unmanned retrofitting requirements of older tracked vehicles, with low cost and no interference with manual control.
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