Parking fault detection method, apparatus, system and working machinery

A parking fault detection system, comprising:

• a controller;
• a parking control component;
• and
• a parking signal feedback component;
• wherein the parking control component is configured to acquire a parking control signal and send the parking control signal to the controller, and the parking control signal is a parking signal or a parking release signal;
• the parking signal feedback component is configured to acquire a feedback signal of a parking brake component of a working machinery and send the feedback signal to the controller;
• the controller is respectively connected to the parking control component and the parking signal feedback component, and is configured to, in response to that it is determined that the parking control condition is met, generate a parking control instruction according to the parking control signal and send the parking control instruction to the parking brake component;
• wherein the parking brake component is configured to perform parking or parking release action according to the parking control instruction;
• the parking control instruction is configured to correspond to the parking control signal;
• and the parking brake component is configured to acquire a parking fault detection result of the working machinery according to a comparison result of the feedback signal and the parking control instruction;
• in response to that the feedback signal of the parking brake component indicates that the parking brake component is in a parking state, and the parking control instruction is a parking release instruction, the controller is configured to indicate that there is the parking fault, and a fault cause is a valve stuck or insufficient brake pressure;
• and
• in response to that the feedback signal of the parking brake component indicates that the parking brake component is in a parking release state, and the parking control instruction is a parking instruction, the controller is configured to indicate that there is the parking fault, and the fault cause is a parking signal feedback component fault.