Safe auxiliary driving system for mining wide-body vehicle

Abstract

The utility model relates to the technical field of mining wide-body vehicles, and discloses a mining wide-body vehicle safety auxiliary driving system which comprises a controller and a braking module, and the braking module comprises a gearbox controller interface, a retarder controller interface and a relay control unit. The relay control unit comprises a first-gear relay, a second-gear relay and a third-gear relay, a pin 1 of the gearbox controller interface is connected with a pin 1 of the retarder controller interface, a pin 2 of the gearbox controller interface is connected with a pin 2 of the retarder controller interface through the first-gear relay, a pin 3 of the retarder controller interface is connected with a pin 3 of the retarder controller interface through the second-gear relay, and a pin 2 of the retarder controller interface is connected with a pin 3 of the retarder controller interface through the third-gear relay. And a pin 4 is connected with a pin 4 of the retarder controller interface through a three-gear relay. Combined braking is adopted, when a driver cannot control the vehicle, the controller takes over control over the gearbox controller through the relay control unit, and the situation that the vehicle completely loses the braking capacity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wide-body mining vehicles, in particular to a safety auxiliary driving system for wide-body mining vehicles. Background Art

[0002] Traditional heavy-duty vehicles mainly use friction brakes for pneumatic braking, which can cause brake overheating, thermal decay, brake and friction pad wear and other problems during high-speed braking or frequent deceleration braking, seriously threatening the vehicle's operating safety. On mountainous roads, when vehicles go down long slopes, the vehicle brakes consume a lot of kinetic energy, and the brake friction pads can easily overheat, resulting in a decrease in brake efficiency, or even a complete loss of braking ability for the vehicle. Therefore, the traditional heavy-duty vehicle braking mechanism is not suitable for wide-body mining vehicles to cope with complex mining conditions. Utility Model Content

[0003] The utility model aims to provide a safety auxiliary driving system for a wide-body mining vehicle to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe auxiliary driving system for a wide-body mining vehicle, comprising a power module, a controller, an engine, a gearbox, a brake solenoid valve, a millimeter-wave radar and a brake module, wherein the power module, the engine, the gearbox, the brake solenoid valve, the millimeter-wave radar and the brake module are all connected to the controller, the brake module comprises a gearbox controller interface, a retarder controller interface and a relay control unit, pin 1 of the gearbox controller interface is connected to pin 1 of the retarder controller interface, the relay control unit comprises a 1st gear relay, a 2nd gear relay and a 3rd gear relay, the 1st gear relay, the 2nd gear relay and the 3rd gear relay are all connected to the controller, pin 2 of the gearbox controller interface is connected to pin 2 of the retarder controller interface through the 1st gear relay, pin 3 of the gearbox controller interface is connected to pin 3 of the retarder controller interface through the 2nd gear relay, and pin 4 of the gearbox controller interface is connected to pin 4 of the retarder controller interface through the 3rd gear relay.

[0005] The following improvements are made in the present application: the power module includes a battery and a 24V power switch relay, the positive pole of the battery is connected to one end of the 24V power switch relay, and a display screen is connected between the negative pole of the battery and the other end of the 24V power switch relay.

[0006] The following improvement is made in the present application: a 30A fuse is connected in series between the positive pole of the battery and the 24V power switch relay.

[0007] The following improvement is made in the present application scheme: an external warning light, an external sound and light alarm and a cab sound and light alarm are arranged in parallel between the negative electrode of the battery and the controller.

[0008] The following improvements are made in the present application: a reversing camera, a left front camera and a right front camera are provided on the display screen, and the display screen is connected to the controller through a CAN bus for mutual communication and can issue corresponding control instructions.

[0009] The following improvements are made in the present application scheme: the millimeter-wave radar includes a left front radar, a front radar and a right front radar. The left front radar, the front radar and the right front radar are all connected to the controller through a CAN bus for communication and can issue corresponding control instructions.

[0010] The following improvements are made in the present application: the pin A-19 of the controller is connected to a reverse gear switch signal, the pin A-20 of the controller is connected to a brake switch signal, and the pin A-21 of the controller is connected to a system enable switch signal. By inputting the reverse gear switch signal, the brake switch signal, and the system enable switch signal command into the controller, the driving state of the vehicle can be obtained at any time during driving, the driver's operating intention can be collected, and the operating conditions of various components of the vehicle can be analyzed, so as to coordinate and control the transmission gear, power steering, braking and other operations respectively.

[0011] The following improvements are made in the present application: the brake solenoid valve includes a brake solenoid valve 1 and a brake solenoid valve 2, the brake solenoid valve 1 is connected to pin B-01 of the controller, and the brake solenoid valve 2 is connected to pin B-02 of the controller.

[0012] The following improvements are made in the present application: the engine and gearbox are connected in parallel with the controller via a CAN bus, and the controller is also provided with a 9-pin diagnostic interface, which is connected to the engine and gearbox via pins B-09 and B-10 of the controller.

[0013] Compared with the prior art, the utility model provides a safe auxiliary driving system for a wide-body mining vehicle, which has the following beneficial effects:

[0014] 1. The utility model connects the engine, gearbox, brake module, etc. through a controller, judges the dangerous state through vehicle speed and obstacle recognition, completes the vehicle auxiliary driving function, controls the vehicle to stop safely, and adopts a brake module composed of a gearbox controller interface, a retarder controller interface and a relay control unit to form a joint brake to reduce the wear of the friction plate of the whole vehicle. Under normal circumstances, the relay control unit does not work, and the gearbox controller is directly controlled by the retarder controller. When the driver is unconscious and unable to control the vehicle, the controller takes over the control of the gearbox controller through the relay control unit to ensure the timing and intensity of the vehicle auxiliary braking intervention, and avoid the vehicle completely losing the braking ability due to excessive brake temperature.

[0015] 2. The utility model does not require wiring to control the chassis. On the basis of ordinary vehicles, the electronically controlled brake valve can be matched to complete the vehicle control cost. It has the characteristics of small size, large angle, strong anti-interference, high stability, easy integration, and high cost performance. At the same time, it can realize advance whistle warning to the driver, downshift and slow down, automatic braking, and synchronously issue warning information through display image display, voice broadcast, and warning lights to alarm, meeting the safety assisted driving needs of mining trucks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural block diagram of the utility model. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiment of the present invention will be described below in conjunction with the accompanying drawings in the embodiment of the present invention:

[0018] like Figure 1 As shown, a safety assisted driving system for a wide-body mining vehicle includes a power module, a controller, an engine, a gearbox, a brake solenoid valve, a millimeter-wave radar and a brake module, wherein the power module, the engine, the gearbox, the brake solenoid valve, the millimeter-wave radar and the brake module are all connected to the controller; the brake module includes a gearbox controller interface, a retarder controller interface and a relay control unit, wherein pin 1 of the gearbox controller interface is connected to pin 1 of the retarder controller interface, the relay control unit includes a 1-speed relay, a 2-speed relay and a 3-speed relay, wherein the 1-speed relay, the 2-speed relay and the 3-speed relay are all connected to the controller, pin 2 of the gearbox controller interface is connected to pin 2 of the retarder controller interface through the 1-speed relay, pin 3 of the gearbox controller interface is connected to pin 3 of the retarder controller interface through the 2-speed relay, and pin 4 of the gearbox controller interface is connected to pin 4 of the retarder controller interface through the 3-speed relay.

[0019] The power module includes a battery and a 24V power switch relay. The positive pole of the battery is connected to one end of the 24V power switch relay, and a 30A fuse is connected in series between the positive pole of the battery and the 24V power switch relay. A display screen is connected between the negative pole of the battery and the other end of the 24V power switch relay, and an external warning light, an external sound and light alarm and a cab sound and light alarm are arranged in parallel between the negative pole of the battery and the controller; a reversing camera, a left front camera and a right front camera are arranged on the display screen. The display screen dynamically displays the distance and direction of the detected obstacles and the real-time vehicle speed. Up to 64 target system outputs can be detected simultaneously. The millimeter-wave radar includes a left front radar, a front radar and a right front radar. The display screen, the left front radar, the front radar and the right front radar are all connected to the controller through the CAN bus. They are connected to each other for communication and can issue corresponding control instructions. If a human body or object is detected within the detection range, the radar controller outputs an alarm information CAN message. If the obstacle body is out of the detection range, the alarm will stop; the pin A-19 of the controller is connected to the reverse gear switch signal, the pin A-20 of the controller is connected to the brake switch signal, and the pin A-21 of the controller is connected to the system enable switch signal; the brake solenoid valve includes brake solenoid valve 1 and brake solenoid valve 2, the brake solenoid valve 1 is connected to the pin B-01 of the controller, and the brake solenoid valve 2 is connected to the pin B-02 of the controller; the engine and the gearbox are connected in parallel with the controller through the CAN bus; the controller is also provided with a 9-pin diagnostic interface, which is connected to the engine and the gearbox through the pins B-09 and B-10 of the controller.

[0020] The vehicle control content includes retarder, brake solenoid valve, and engine. The control sequence logic is: sound and light warning - retarder - brake solenoid valve - engine shutdown; the system dynamically monitors obstacles within a 120-degree range, and distinguishes the effective obstacle position, distance, speed, etc. according to the lane width for graded warning and control to ensure the preventive control safety of the vehicle. All sensors are installed in front of the vehicle to detect obstacles in the direction of travel. The monitoring distance is 40 meters, and the detection distance can be adjusted according to actual conditions. In the non-R gear state, the farthest detection distance of all sensors is set at 40 M, between 40M and 20M, only display alarm is made, no sound alarm is made. Within 20M, the display alarm and sound alarm (buzzer inside the car and alarm outside the car) are made. In the R gear state, no detection is made. The system can be turned on or off by the driver. The system is off by default and the driver needs to turn it on manually each time it is turned on. The principle of system intervention is to use the controllable time of the vehicle as the basic judgment condition, that is, the system uses the shortest control braking time at different vehicle speeds as the controllable condition, and the control time and timing are verified and confirmed after debugging.

[0021] The above embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A safety assisted driving system for a wide-body mining vehicle, comprising a power module, a controller, an engine, a gearbox, a brake solenoid valve, a millimeter-wave radar and a brake module, wherein the power module, the engine, the gearbox, the brake solenoid valve, the millimeter-wave radar and the brake module are all connected to the controller, and characterized in that: The brake module includes a transmission controller interface, a retarder controller interface and a relay control unit, wherein pin 1 of the transmission controller interface is connected to pin 1 of the retarder controller interface, the relay control unit includes a 1st-gear relay, a 2nd-gear relay and a 3rd-gear relay, wherein the 1st-gear relay, the 2nd-gear relay and the 3rd-gear relay are all connected to the controller, pin 2 of the transmission controller interface is connected to pin 2 of the retarder controller interface through the 1st-gear relay, pin 3 of the transmission controller interface is connected to pin 3 of the retarder controller interface through the 2nd-gear relay, and pin 4 of the transmission controller interface is connected to pin 4 of the retarder controller interface through the 3rd-gear relay.

2. The safety auxiliary driving system for a wide-body mining vehicle according to claim 1 is characterized in that: The power module includes a battery and a 24V power switch relay, the positive electrode of the battery is connected to one end of the 24V power switch relay, and a display screen is connected between the negative electrode of the battery and the other end of the 24V power switch relay.

3. A safety auxiliary driving system for a wide-body mining vehicle according to claim 2, characterized in that: The display screen is provided with a reversing camera, a left front camera and a right front camera, and the display screen is connected to the controller through a CAN bus for mutual communication and can issue corresponding control instructions.

4. A safety auxiliary driving system for a wide-body mining vehicle according to claim 2, characterized in that: A 30A fuse is connected in series between the positive pole of the battery and the 24V power switch relay.

5. A safety auxiliary driving system for a wide-body mining vehicle according to claim 4, characterized in that: An external warning light, an external sound and light alarm and a cab sound and light alarm are arranged in parallel between the negative electrode of the battery and the controller.

6. The safety auxiliary driving system for a wide-body mining vehicle according to claim 1 is characterized in that: The millimeter-wave radar includes a left front radar, a front radar and a right front radar. The left front radar, the front radar and the right front radar are all connected to the controller through a CAN bus and can issue corresponding control instructions.

7. The safety auxiliary driving system for a wide-body mining vehicle according to claim 1 is characterized in that: The pin A-19 of the controller is connected to a reverse gear switch signal, the pin A-20 of the controller is connected to a brake switch signal, and the pin A-21 of the controller is connected to a system enable switch signal.

8. The safety auxiliary driving system for a wide-body mining vehicle according to claim 1 is characterized in that: The brake solenoid valve includes a brake solenoid valve 1 and a brake solenoid valve 2. The brake solenoid valve 1 is connected to the pin B-01 of the controller, and the brake solenoid valve 2 is connected to the pin B-02 of the controller.

9. The safety auxiliary driving system for a wide-body mining vehicle according to claim 1 is characterized in that: The engine and the gearbox are connected in parallel with the controller via a CAN bus. The controller is also provided with a 9-core diagnostic interface, which is connected to the engine and the gearbox via pins B-09 and B-10 of the controller.

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