PROBLEM TO BE SOLVED: To grasp an air state of a spring brake chamber and prevent an erroneous operation of a parking brake.SOLUTION: A brake system 1 includes: a spring brake chamber 5 which has a normal brake section and a parking brake section, operates a brake 6 by only the normal brake section by supplying compressed air to the parking brake section during normal travel, and operates the brake by discharging the compressed air in the parking brake section during parking; a parking brake valve 29 which switches the supply and discharge of the compressed air to/from the parking brake section; a vehicle speed sensor 33 which detects vehicle speed; a pressure sensor 34 for a parking brake which detects pressure in a compressed air circuit for a parking brake; an alarm section 32 which notifies an abnormality of the spring brake chamber 5; and a control section which notifies and instructs the abnormality of the spring brake chamber 5 from the alarm section 32 when a state in which a detection value of the vehicle speed sensor 33 is a prescribed value or more and a detection value of the pressure sensor 34 for the parking brake is less than a prescribed value is continued for a prescribed time.SELECTED DRAWING: Figure 1
【課題】スプリングブレーキチャンバーの空気状態を把握し、駐車ブレーキの誤動作を防止する。【解決手段】ブレーキシステム1は通常ブレーキ部及び駐車ブレーキ部を有し、通常走行時に駐車ブレーキ部への圧縮空気供給により通常ブレーキ部によってのみブレーキが作動し、駐車時に駐車ブレーキ部の圧縮空気排出によりブレーキ6が作動するスプリングブレーキチャンバー5と、駐車ブレーキ部への圧縮空気供給と排出を切り替える駐車ブレーキバルブ29と、車両速度を検出する車速センサ33と、駐車ブレーキ用圧縮空気回路内圧力を検出する駐車ブレーキ用圧力センサ34と、スプリングブレーキチャンバー5の異常を知らせる警報部32と、車速センサ33の検出値が所定値以上、且つ、駐車ブレーキ用圧力センサ34の検出値が所定値未満、の状態が所定時間経過した場合、警報部32からスプリングブレーキチャンバー5の異常を報知指示する制御部と、を備える。【選択図】図1
BRAKE SYSTEM AND BRAKE MONITORING METHOD
ブレーキシステム及びブレーキ監視方法
2017-06-29
Patent
Electronic Resource
Japanese
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