Energy-saving control device for vehicle-mounted overhead working truck

Abstract

The utility model discloses a vehicle-mounted overhead working truck energy-saving control device which comprises an engine state detection relay, an electromagnetic mechanism of the engine state detection relay is located on a state line of a chassis generator, and a contact is located at the signal input end of a main controller. The electromagnetic mechanism drives the contact to be closed or opened based on the working state of the generator, and the main controller controls the on-off of the top-mounted electric equipment based on a contact signal, such as a top-mounted sensor, an electromagnetic valve, a state indicator lamp and the like. According to the device, the working state of the generator is monitored in real time through the engine state detection relay, so that the main controller controls the power on and power off of the mounted electric equipment based on the working state of the generator, and the waste of electric energy when the vehicle-mounted overhead working truck flames out for a long time to carry out standby operation is effectively reduced.

Description

Technical Field

[0001] This utility model relates to aerial work platform control technology, and in particular to an energy-saving control device for vehicle-mounted aerial work platforms. Background Technology

[0002] The power system of a vehicle-mounted aerial work platform typically draws power from the chassis engine, which then drives various hydraulic actuators via hydraulic pumps and solenoid valves. The electronic control system usually draws power directly from the chassis battery to supply power and logic control to the main controller, sensors, indicator lights, solenoid valves, and other electrical components. The chassis battery is replenished by a generator driven by the engine. However, to conserve fuel, aerial work platform operators often leave the engine off for extended periods after extending the boom to the working position. This results in significant battery drain due to the prolonged operation of sensors, indicator lights, and solenoid valves, without timely recharging, leading to battery depletion and failure.

[0003] To address battery depletion caused by prolonged standby operation, the usual solutions are to increase battery capacity or instruct operators to minimize engine-off standby time. However, increasing battery capacity requires modifications to the chassis housing the battery, significantly increasing costs and potentially affecting the layout of other equipment on or near the chassis. Conversely, requiring operators to reduce engine-off standby time increases fuel consumption during standby and is difficult to guarantee effective implementation. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide an energy-saving control device for vehicle-mounted aerial work platforms, which can control the power supply of the upper-mounted electrical equipment based on the working status of the generator, thereby reducing the waste of electrical energy when the vehicle-mounted aerial work platform is turned off for a long time for standby operation.

[0005] Technical solution: To achieve the above objectives, the present invention provides an energy-saving control device for a vehicle-mounted aerial work platform, comprising an engine status detection relay. The electromagnetic mechanism of the engine status detection relay is located on the status line of the chassis generator, and the contacts are located at the signal input terminal of the main controller. The electromagnetic mechanism drives the contacts to close or open based on the working state of the generator, and the main controller controls the power supply to and from the upper-mounted electrical equipment based on the contact signals.

[0006] This also includes the chassis battery that supplies power to the main controller and the upper-mounted electrical equipment.

[0007] The aforementioned upper-mounted electrical equipment includes upper-mounted sensors.

[0008] The sensors mounted on the upper part include a turntable rotation encoder, a boom amplitude angle sensor, and a boom telescopic length sensor.

[0009] The main controller controls the power supply to the sensor mounted on it via a sensor power control relay.

[0010] The electrical equipment in the upper structure includes a solenoid valve.

[0011] The solenoid valve includes a support leg shut-off valve, a main unloading valve for the upper structure, an action control solenoid valve, and a split-action unloading valve.

[0012] The upper-mounted electrical equipment includes status indicator lights.

[0013] The status indicator lights include horizontal outrigger extension status indicator lights, vertical outrigger extension status indicator lights, and boom return status indicator lights.

[0014] Beneficial effects: This utility model has the following advantages: 1. This device monitors the working status of the generator in real time through the engine status detection relay, enabling the main controller to control the power supply of the upper-mounted electrical equipment based on the feedback signal from the engine status detection relay, effectively reducing the waste of electrical energy when the vehicle-mounted aerial work platform is idle for a long time; 2. It can automatically complete energy-saving control without the need for additional operation by the driver, reducing the difficulty of operation and improving work efficiency; 3. The device has a simple design structure, good compatibility, and is easy to integrate into existing electronic control systems, and can be widely used in various work vehicles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this device. Detailed Implementation

[0016] The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings.

[0017] like Figure 1 As shown, the energy-saving control device includes: chassis battery 1, chassis generator 2, engine status detection relay 3, main controller 4, superstructure sensor 5, solenoid valve 6, status indicator light 7, and sensor power control relay 8.

[0018] Among them, the chassis battery 1 and chassis generator 2 are integrated into the chassis. The chassis battery 1 provides power supply for the electronic control system on the aerial work platform. The chassis generator 2 drives the engine status detection relay 3 through the generator status line to obtain the chassis engine start status.

[0019] The engine status detection relay 3 is used to sense the generator drive status and transmit the status signal to the main controller 4 through the contacts.

[0020] The main controller 4 is the core control device for the aerial work platform vehicle, used for the vehicle's logic control and action output. In this energy-saving control device, it is mainly used to receive the status of the chassis engine, control the power supply of the upper-mounted sensor 5, and the output of the solenoid valve 6 and status indicator 7.

[0021] The term "upper-mounted sensor 5" refers to the collective term for attitude detection sensors of aerial work platforms, including but not limited to turntable rotary encoders, boom amplitude angle sensors, and boom telescopic length sensors.

[0022] Solenoid valve 6 is a general term for the solenoid valves used in aerial work platforms, including but not limited to outrigger shut-off valves, main unloading valves for the upper structure, motion control solenoid valves, and split-operation unloading valves.

[0023] Status indicator 7 is the general term for all the working status indicator lights of the aerial work platform vehicle, including but not limited to the horizontal outrigger extension and retraction status indicator lights, the boom return status indicator lights, etc.

[0024] The sensor power control relay 8 is used to receive instructions from the main controller 4 and control the power supply to the sensor 5 mounted on it.

[0025] Since the power source for the vehicle-mounted aerial work platform comes from the chassis engine, the chassis engine must be started when operating the boom. Once the chassis engine is running, the chassis generator begins generating electricity. The engine status detection relay detects the start / stop status of the chassis engine by collecting the status line of the chassis generator and transmits this information to the main controller via contact signals. When the main controller detects that the chassis engine is running, it drives the sensor power control relay to supply power to the sensors on the upper structure and restores the status output of the electromagnetic unloading valve and indicator lights according to logic control. Since the chassis generator is generating electricity at this time, the generated power can be directly used by the upper structure without consuming the battery. When the main controller detects that the chassis engine is off, it stops driving the sensor power control relay, thereby cutting off the power to the sensors on the upper structure and disconnecting the output of the electromagnetic unloading valve and status indicator lights, entering standby mode, thus significantly reducing the power consumption of the electronic control system. The specific working principle and process are as follows:

[0026] When the operator of the aerial work platform starts the chassis engine, the chassis generator 2 begins generating electricity to replenish the chassis battery 1. Simultaneously, it activates the coil of the engine status detection relay 3, closing its normally open contact and transmitting engine start status information to the main controller 4. Upon receiving this information, the main controller 4 activates the coil of the sensor power control relay 8, closing its normally open contact and supplying power to the upper-mounted sensor 5. Simultaneously, the main controller 4 restores the normal output of the solenoid valve 6 and status indicator light 7 through program logic, and the system enters normal operating mode.

[0027] When the operator extends the boom of the aerial work platform to the working position and turns off the chassis engine, the chassis generator 2 stops generating electricity, the coil of the engine status detection relay 3 is de-energized, and the normally open contact opens. The main controller 4, not receiving engine start-up status information, disconnects the coil of the sensor power control relay 8, causing the normally open contact of the sensor power control relay 8 to open, thus de-energizing the upper-mounted sensor 5. Simultaneously, the main controller 4 disconnects the output of the solenoid valve 6 and the status indicator light 7 through program logic, and the system enters standby mode. In this standby mode, high-power sensors, indicator lights, and solenoid valves in the aerial work platform's electronic control system no longer consume power, thereby achieving energy-saving control of the electronic control system.

Claims

1. An energy-saving control device for a vehicle-mounted aerial work platform, characterized in that, The system includes an engine status detection relay (3), whose electromagnetic mechanism is located on the status line of the chassis generator (2), and whose contacts are located at the signal input terminal of the main controller (4). The electromagnetic mechanism drives the contacts to close or open based on the working state of the generator, and the main controller (4) controls the power supply of the superstructure electrical equipment based on the contact signals.

2. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 1, characterized in that, It also includes the chassis battery (1) that supplies power to the main controller (4) and the upper-mounted electrical equipment.

3. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 1, characterized in that, The upper-mounted electrical equipment includes an upper-mounted sensor (5).

4. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 3, characterized in that, The upper-mounted sensor (5) includes a turntable rotary encoder, a boom amplitude angle sensor, and a boom telescopic length sensor.

5. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 3, characterized in that, The main controller (4) controls the power supply of the sensor (5) mounted on the sensor via the sensor power control relay (8).

6. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 1, characterized in that, The upper-mounted electrical equipment includes a solenoid valve (6).

7. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 6, characterized in that, The solenoid valve (6) includes a support leg shut-off valve, a main unloading valve for the upper structure, an action control solenoid valve, and a split-action unloading valve.

8. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 1, characterized in that, The upper-mounted electrical equipment includes status indicator lights (7).

9. The energy-saving control device for vehicle-mounted aerial work platforms according to claim 8, characterized in that, The status indicator lights (7) include horizontal outrigger extension status indicator lights, vertical outrigger extension status indicator lights, and boom return status indicator lights.

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