JP2016199244A - Hydraulic driving method and device for regular vehicle, truck and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems associated with heat caused by long-term continuous use of a brake device, and to simplify the whole of a driving device.SOLUTION: A hydraulic driving device employs a vane oil motor or an axial piston oil motor 2 for driving a wheel 1. The oil motor 2 should be installed within the wheel as much as possible. A plurality of transmission vane oil pumps 15, 16, 17, 19 with different diameters are driven one by one by an engine 10 through electromagnetic clutches 14, 18.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hydraulic drive and stop method and apparatus for automobiles and trailers.

The current car is basically the same as the style when the car over 100 years ago was developed, and the rotational force of the engine is transmitted to the wheels by a mechanical method and driven. In addition, the brake adopts a bicycle brake system in which a drum interlocking with the wheel is provided and stopped by friction. Therefore, the power transmission method from the engine to the wheel is mechanical and requires a considerable transmission device, and the vehicle weight is considerably increased by these devices, ie, transmission, propeller shaft, differential gear, and the like. Also, the brake system adopts a system that stops the foil by friction, so it becomes quite complicated, and if it is used continuously for a long time on a mountain road etc., the friction part overheats due to frictional heat, and this heat is transmitted to the cylinder and brake oil Boils and flows back into the oil tank, causing the cylinder to run out of oil and not to use the brakes. Although these devices have been partially improved, they are basically the devices of a hundred years ago. Today, it is an era in which hundreds of tons of artificial satellite rockets are injected with liquid oxygen, detached from the launch pad, rocket ignition, and separation of the rocket and satellite are all performed by computer mouse operations. Therefore, it is considered that it is time to review the old car driving method and braking method. The problem to be solved by the present invention is that the conventional driving method and brake system of an automobile are not limited to the existing concept, but the most advanced modern technology is improved to eliminate useless devices, and the driving device is simplified. The mechanical drive method has many great advantages as part of the planning task of perfecting brake equipment, simplifying assembly work, reducing total body weight, reducing manufacturing costs, reducing engine size, and reducing fuel consumption. It is intended to change to a hydraulic drive method.

Means to solve the problem

The oil vane motor will rotate faster if the oil flow rate is increased, and conversely if it decreases, the rotation will be slower.If the oil flow rate is stopped, the rotation will stop and the shaft will be fixed. It has the property of rotating. In other words, the oil vane motor has the functions of acceleration, deceleration, stop, and reverse rotation just by adjusting the oil flow rate, that is, if it is applied to an automobile, it has four functions of accelerator, brake, parking, and return. Is understood. Therefore, using this oil vane motor not only eliminates the need for a special braking system, but also eliminates the fate of friction and eliminates the heat generation phenomenon. Yes. This wonderful feature is an advantageous advantage that it is difficult for a car to eliminate the brakes of the extremely serious danger related to human life. An oil pump is required to drive the oil motor, which can be driven by the engine. The oil motor and the oil pump need only be connected by a flexible high-pressure pipe, which eliminates the need for a propeller shaft and differential gear, which can be combined with the need for a brake, resulting in a great device simplification.

Effect of the invention

(1) Since no mechanical drive device and brake device are required, the structure of the vehicle body is remarkably simplified and the vehicle body weight is greatly reduced, and its merit is immeasurable. That is, there are immeasurable things such as simplification of assembly, downsizing of the engine, reduction of manufacturing cost, and saving of fuel consumption.
(2) Since there is no frictional part in the brake, there is no heating effect, it can be used continuously for a long time, and the loss of braking effect due to heating, which is a very serious danger factor regarding human life on mountain roads, is eliminated. It is an advantage that is difficult to replace.
(3) There is no need to consider specially because it is equipped with a differential device.
(4) 4WD can be easily done.
(5) A differential gear box and a propeller shaft are unnecessary, which is advantageous for running in the wilderness, and the vehicle body can be made low or high.
{Circle around (6)} A limited slip (LS) device can be achieved simply by installing a single pressure sensing valve, which eliminates the inability to escape due to slipping of one vehicle in a snowy country or a mountainous area, making it extremely safe and convenient.
▲ 7 ▼ In general, installing a drive device on a trailer is similar to a 4WD vehicle and is known to be advantageous in many ways, but it requires a long propeller shaft and supports several places to prevent this rotational shaking. Some trailers are equipped with a drive, despite the need for differential gears that had to be done and the considerable expense. If the oil motor according to the present invention is installed, neither the propeller shaft nor the differential gear is required, so it can be easily installed, and if this device is installed on the trailer, the drive oil that could not be realized with the conventional drive system and retarder By adjusting the amount, continuously variable speed brakes are possible, and the brakes do not heat up, so it is possible to keep the brakes applied. It replaces a safe and comfortable journey that eliminates dangerous elements. This advantage is an advantage that cannot be replaced by anything, and this is a common advantage for trucks.
(8) Since the engine can be installed anywhere and the oil motor can be easily waterproofed, it is advantageous for the design of amphibious vehicles.
(9) Vane motors and pumps still have a lot of room for improvement in the future, such as improvement in efficiency and weight reduction, and further improvement in efficiency and weight reduction can be considered for automobiles.
(10) The current oil torque converter is not efficient because it uses the kinetic energy of oil, whereas the oil pump and oil motor use the pressure of liquid oil, which is more efficient. It should be better.
(11) If a vane motor is used for the drive oil motor, it will fit well in the foil, making the car more compact and more advantageous for running in the wilderness.
(12) Automatic transmissions can be installed evenly on all large vehicles, making operation easier.
The above is the main effect of the present invention.

Illustration

Next, the embodiment of the present invention will be described together with the operation with reference to FIG. In FIG. 1, 1 is a wheel, 2 is a hydraulic motor that rotates the wheel, 3 is a brake valve that adjusts the flow rate of drive oil, 4 is a brake pedal, and if you step on the petal, the oil passage of the brake valve 3 will be It becomes narrower and brakes are applied, eventually the passage is closed and the motor stops. That is, P. Reference numeral 20 denotes a return spring installed on the brake valve. Reference numeral 5 denotes a D, P, R guide hole in order from the right for manual operation. The valve 6 is a switching valve for DPR, and this is switched so that the actions of D, P, and R are performed. That is, the current figure shows D and is in a state where it can run. Further, if the valve core is moved to the left P in FIG. 1 in one compartment, all the valves are closed and the motor is fixed and is in a P state. The passage opens and the oil rotates backward, the motor rotates backward, and the car moves backward. The above describes how to drive the foil using an oil motor.
Next, the configuration of driving the oil pump using the engine described below from the center of the drawing and feeding the drive oil to the DPR switching valve 6 will be described together with the operation.
In FIG. 1, 12 is an oil tank, four valves 13 are check valves, 10 is an engine, 15, 16, 17 and 19 are oil vane pumps for transmission developed for driving a car. 4 are connected, and 15 is the direct lightest and the oil drive amount is the minimum, but the pressure is the maximum and is used for starting the car. The diameter gradually increases to 16, 17 and is used for intermediate speed operation, and 19 is suitable for the highest speed operation because the oil flow is maximized and the oil pressure is minimized. Each pump is normally stopped and is rotated by the action of the electromagnetic clutches 14 and 18. The functions of 14, 18 are transmitted to the electromagnetic clutches 14, 18 by amplifying a signal from a computer that calculates the weight and speed so that the optimum oil pump can be selected. A pump 11 is used for other purposes such as power steering. 8 and 9 are pressure relief valves, which prevent damage to equipment due to high hydraulic pressure. As described above, the driving force of the engine is transmitted to the wheels via the oil pump and the oil motor to drive the vehicle.

In FIG. 1, 1 is a wheel, 2 is an oil motor for rotating the wheel, 3 is a brake valve for adjusting the flow rate of driving oil, 4 is a brake pedal, and 5 is a D, P, R guide hole for manual operation. , 6 is a switch valve for DPR, 12 is an oil tank, 13 is a check valve, 10 is an engine, 15, 16, 17 and 19 are oil vane pumps for transmission developed for driving an automobile. , 14 and 18 are electromagnetic clutches, 11 is an oil pump, and 7 indicates the destination of the oil, which is used exclusively for driving operation. 8 and 9 are relief valves.

Claims (6)

Hydraulic drive method and apparatus for a vehicle characterized in that the oil pump for transmission is driven by the engine of the vehicle and the wheels of the vehicle or trailer are driven by the oil motor. 2. The vehicle hydraulic drive method and apparatus according to claim 1, wherein a vane motor and a vane pump are used for the wheel drive oil motor and the transmission oil pump, respectively. 3. The vehicle hydraulic drive method and apparatus according to claim 1 and claim 2, wherein the wheel drive oil motor is mounted inside or out of the wheel. The vehicle oil pump is driven by using three or four vane pumps of different sizes, medium, small or maximum, large, medium, and small for transmission oil pumps. The vehicle hydraulic drive method and apparatus according to claims 1 and 3 5. The vehicle hydraulic drive according to claim 1, wherein the plurality of vane pumps according to claim 4 are driven one by one using a clutch. Method and apparatus The vehicle hydraulic drive method according to any one of Items 1, 2, 3, 4 and 5, wherein a vane oil motor or an axial piston oil motor is used as the drive oil motor; The device

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