TWI322098B - - Google Patents

Description

1322098 IX. Description of the Invention: [Technical Field] The present invention relates to a power control system, and more particularly to a power control system and a control method thereof that can reduce fuel consumption and are easy to operate. [Prior Art] A conventional hand truck is used to clutch a clutch (such as a coil spring clutch and a diaphragm spring clutch) between an engine and a gearbox to clutch the engine and the gearbox. The power transmission. Although the friction clutch can avoid the relative sliding idling between the engine and the transmission by direct friction, the fuel consumption between the engine speed and the transmission power output is prevented from being excessively large. The problem, however, is that the hand-cranked vehicle must be equipped with a hand-operated shift lever to perform a shifting operation, which is not only difficult for the driver but also cumbersome to operate. The general self-discharging vehicle is automatically clutched by an automatic clutch (electronically controlled clutch) installed between an engine and a gearbox: the power transmission between the gearboxes, though, This automatic separation: ° 鈥 two by the clutch pedal to control, but easy for the driver to learn to operate, because this automatic clutch is by hydraulic oil The transmission: the power between the gearboxes. Therefore, the engine and the gearbox are relatively slid and idling, resulting in excessive fuel consumption between the engine speed and the variable and phase output. Γ: On the above-mentioned hand-cranked or self-draining car, when the driver releases the oil ^ and the right driver does not switch the gearshift lever to neutral, the engine and the 5 1322098 will still maintain a power connection between the gearboxes. Therefore, it is an object of the present invention to provide a power control system that can reduce fuel consumption and is easy to operate. Another object of the present invention is to provide a power consumption problem that is wasteful of power. That is, a control method for a power control system capable of reducing fuel consumption and being convenient to operate is provided. The power control system of the present invention is mounted on a vehicle body and can be controlled

A power transmission between an engine of the vehicle body and a gearbox, the power control system including an accelerator pedal unit, a clutch unit, and an actuating unit. The accelerator pedal unit is movable between an unfueled position and a refueling position. The clutch unit is disposed between the engine and the transmission, and the clutch unit is switchable between a separated state and a connected state, and when the clutch is in the separated state, the engine can be interrupted a power transmission between the transmissions, which can be coupled when the clutch unit is in the connected state

Power transmission between the engine and the gearbox. The actuation unit is disposed between the accelerator pedal unit and the clutch unit. When the accelerator pedal unit is at the == position, the accelerator pedal unit can drive the escapement state 7L to the link via the actuation unit. a state, when the accelerator pedal unit is in the unsupported position, the accelerator pedal unit can drive the clutch unit to change to the separated state via the actuating unit. : Hair: The control method of the power control system' includes: (A) stepping on a ' pedal early element, making the clutch between a single engine and a gearbox. The power transmission between the engine and the transmission is linked early. (Β) Release the 6 1322098 S oil pedal unit so that the clutch H unit is interrupted and the power transmission between the engine and the gearbox is interrupted. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Referring to Figures 1, 2, and 3, A preferred embodiment of the inventive power control system is mounted on a vehicle body (not shown) to control the power transmission between an engine 100 of the vehicle body and a transmission 200. The power control system The utility model comprises: an accelerator pedal unit 10, a clutch unit 20, an actuating unit 3〇, a stroke sensor 40, a brake pedal unit 5〇, and a brake hydraulic valve 60. The accelerator pedal unit 10 is movable between an unfueled position (see FIG. υ and a refueling position (see FIG. 2). The accelerator pedal unit 1 has a pedal portion 11 and a pivoting portion opposite to the pedal portion u. Operation on the vehicle body = 12, a valley 13 formed in the operating portion 11 and opening toward the actuating unit 3, a solenoid valve 14 installed in the chamber 13, and a mounting In the connecting member 15 in the chamber 13, the solenoid valve 14 has an electromagnetic push rod 141 facing the actuating element τ, and the connecting member 15 has a shaft portion 151 pivotally eccentrically disposed on the cymbal operating portion 12. And a pressed portion 152 connected to the shaft portion 151 and interposed between the shaft portion 151 and the electromagnetic push rod 141. Of course, when the accelerator pedal unit 1 is in the refueling position (see Fig. 2) The speed of the engine can be controlled via a fueling circuit (not shown). The clutch unit 20 is mounted between the engine 100 and the gearbox 200, and can be in a separate state (see figure). 1) changing between a connected state (see FIG. 2). The clutch unit 20 has a crankshaft 110 mounted on the engine 100. a flywheel 21, a housing 22 mounted on the flywheel 21 for an input shaft 210 of the transmission 200, a friction disk 23 mounted on an end of the input shaft 210 facing the flywheel 21, a driven disk 24' movably mounted on the input shaft 210 and a plurality of return springs 25 mounted between the housing 22 and the driven disk 24. When the clutch unit 20 is in the connected state ( 2), the driven disk 24 drives the friction disk 23 to move against the flywheel 21, and connects the power transmission between the engine and the gearbox 200. When the clutch unit 20 is in the separated state (see FIG. 1), the driven disk 24 is pulled by the reset springs 25 to be disengaged from the friction disk 23, so that the friction disk 23 is naturally opened and disengaged. The flywheel 21 interrupts the power transmission between the engine 1 and the transmission 200. The actuation unit 30 is disposed between the accelerator pedal unit 1 and the clutch unit 20, and the actuation unit 3 has a first hydraulic cylinder 31 adjacent to the throttle step 2 unit 10, adjacent to the clutch unit 2〇 a second hydraulic cylinder 32, a linkage rod 33 mounted between the second (four) red 32 and the clutch unit 2〇 and pivoted on the vehicle body, and connected to the first and second oil pressure rainbow An oil passage 34 between 31 and 32. The first hydraulic cylinder 有 has a -th cylinder 3H, movably mounted in the first cylinder 3 ι and toward the shaft portion 151 of the connecting member 15 a first piston rod 312 extending from the first cylinder 311 and a first-complex spring 313 disposed between the first cylinder 311 and the first, # _ 塞 312, the second hydraulic cylinder 32 having a ping a first red body 321 , a second piston rod 322 movably slid in the second cylinder 321 and extending toward the linkage rod 33 , and a second cylinder 321 and the second A second return spring 323 between the piston rods 322. When the accelerator pedal unit 1〇 is moved to the refueling position (see FIG. 2), the shaft portion i5i of the connecting member 15 can push the first piston rod 312' to pass the hydraulic oil in the first cylinder block 311 through the oil. The road 34 is conveyed into the second cylinder 321 to force the second piston rod to push the linkage rod 33 to swing toward the driven disk 24. Thus, the linkage rod 33 can drive the driven disk 24 to drive the friction disk. Moving to abut against the flywheel 21, thereby changing the clutch unit 2() to the engaged state (see Fig. 2). Conversely, when the accelerator pedal unit 1 is moved to the unfueled position (see Fig. 1) When the shaft portion 151 of the connecting member 15 is reversed away from the first piston rod 312, the first and second piston rods 312, 322 are respectively reset to a starting position (see Figure 〇, and the second The hydraulic oil in the cylinder 321 is reversely conveyed into the first cylinder 311 via the oil passage 34. At this time, the driven #24 can be pulled by the return springs 25 to be reversed from the friction disc 23, and The linkage rod 33 is driven to swing in the opposite direction, so that the friction disc 23 can be naturally opened and disengaged from the flywheel 21, so that the The clutch unit 2 is transformed into the separated state (see Fig. 1). The stroke sensor 40 is mounted on the vehicle body and adjacent to the brake pedal unit 50, and is electrically connected to the accelerator pedal unit 1(4)(4)14. The stroke sensor 40 can sense the amount of movement of the brake pedal unit 5〇, and transmit the sensing signal to the solenoid valve 14. The brake pedal unit 5G can be in the -un-carrying position (see FIG. 1) and the brake Moving between positions (see Fig. 3). The brake pedal unit % has an operation opposite to the pedal portion 51 and pivoted on the vehicle body, "formed on the operating portion 52 and is perceived toward the stroke The second projection 54 is formed on the operating portion 52 and protrudes toward the brake oil. When the brake pedal unit 5 () moves to the vehicle position (See FIG. 3), the first protrusion 53 can touch the stroke sensor 40, so that the stroke sensor 4 drives the electromagnetic push rod in of the electromagnetic valve μ from an extended position (see FIG. Retracting position (see Fig. 3), and away from the pressed portion 152 of the connecting member 15, at this time, the t portion of the connecting member ❺ Moving away from the first - ink cylinder 31 (four) - a piston: dry 312 'so" even if the driver steps on the pedal portion 11 ' of the accelerator pedal unit (7) because the shaft portion 151 has not touched the first piston rod 312, 'The clutch unit 20 does not change to the connected state. Conversely, when the brake pedal unit 50 is moved to the untwisted position (see FIG. 1), the first bump 53 can be away from the stroke sensor 4〇. And causing the stroke sensor 4 to drive the electromagnetic push rod 141 of the solenoid valve 14 from the retracted position (see FIG. 3) to the extended position (see FIG. υ, and being pushed against the connecting member 15) At the pressing portion 152, at this time, the shaft portion 151 of the connecting member 15 is eccentrically rotated to the first piston rod 312 near the first hydraulic cylinder 31, and at this time, if the driver steps on the accelerator pedal unit 1 In the pedal portion u of the crucible, the shaft portion 151 touches the first piston rod 312, and the clutch unit 2 () is switched to the connected state. The brake hydraulic valve 60 is mounted on the vehicle body and adjacent to the brake pedal unit 50. When the brake pedal unit 5〇 is moved to the brake position (see FIG. 3), the second protrusion 54 can be The brake hydraulic valve 6触 is pressed, and the drum brake or the disc brake at the wheel of the 煞10 1322098 vehicle oil is generated to stop the braking effect of the wheel. Thereby, the driver can control the power control system of the present invention by the following control methods:

Step 1: As shown in Figure 2, when the driver wants to drive the car, the pedal portion η can be gradually depressed, and the accelerator pedal unit 1〇 is gradually moved to the refueling position (see Fig. 2), in the process. The speed of the crankshaft of the engine will gradually increase, and the clutch unit 20 will gradually change to the connected state. In this embodiment, the torque requirement of the engine 1配合 can be matched with the engine. When the rotational speed is 1000 to 1200 RPM, the friction disc 23 is engaged with the flywheel 21, and when the engine speed is 16 〇〇 18 〇〇 RpM, the friction disc 23 and the flywheel 21 are completely pressed, and the clutch unit is made 20 fully couples the power transmission between the engine 100 and the gearbox 2, so that the car can move.

Step 2: As shown in FIG. 1 , when the driver wants to decelerate the car, the pedal portion 11 can be gradually released, and the accelerator pedal unit 1〇 is gradually moved to the unfueled position, in the process, the engine The rotation speed of the crankshaft ιι〇 of 1〇〇 will gradually decrease', and the clutch unit 2〇 will gradually change to the separated state, so that the friction disc 23 can gradually get detached from the flywheel 2ι, most = and interrupt the engine The power transmission between the 100 and the transmission 2〇〇 causes the car to gradually decelerate. When Tian Wen is hot, he can gradually step on the pedal part, so that the pedal unit of the service car gradually moves to the brake position. In the process, the second protrusion 54 can be touched: ..., the vehicle pressure is firm The valve 60 11 ' causes the brake oil to drive the braking effect of the straight wheel, and the = type brake or the disc brake generates the stop 40, so that the stroke "" the first bump 53 can also touch the stroke sense (4) to move... 4〇 drives the electromagnetic push rod of the electromagnetic room 14

152, this 蚌"·" returns to the position 'and away from the pressed portion 152 of the connecting member 15, at this time, the connection is to the port I η%, the shaft portion 151 is eccentrically rotated away from the first oil The first scull of the pressure cylinder 31 is erroneously stepped on by the driver: 'At this time', as shown in Fig. 4, the portion (5) _ is less than the heart = ° pedal portion U, the first piston rod 312 due to the shaft Therefore, the clutch unit will not be converted to the connected state. 2 shown in the '# 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者It can be far away from the brake oil valve so that the drum brake or the disc brake at the wheel no longer produces the effect of stopping the wheel I and the vehicle. At the same time, the first protrusion 53 can also be remote from the stroke sensor 40' to sense the stroke. The actuator 40 drives the electromagnetic push rod 141 of the solenoid valve 14 to the extended position 'to abut against the pushed portion (5) of the connecting member 15 at this time, and the shaft portion 151 of the connecting member 15 is eccentrically rotated. Up to the first piston rod 312 ' near the oil pressure rainbow 31. At this time, if the driver gradually lowers the pedal portion U and gradually moves the accelerator pedal unit 1 to the fueling position, the clutch unit 20 will Then gradually changing to the connected state, and reconnecting the power transmission between the engine 100 and the gearbox 2: ☆ In addition, as shown in FIG. 4, when the driver steps on the vehicle in an emergency and mistakenly steps on the accelerator, The brake pedal unit 50 will move to the brake position ' ^ the first bump 54 touches the brake oil pressure The valve 6〇, which in turn generates the 12 1322098 braking effect of the wheel, and the first protrusion 53 can also touch the stroke sensor 40 ′ to sense the stroke 4〇a? ^ j. υ drive the solenoid valve 14 The electromagnetic push rod 141 is moved to the retracted position, and the soil is moved away from the pressed portion 152 of the connecting member 15. At this time, the axis & σ 151 of the connecting member 15 is eccentrically rotated away from the first The first piston rod of a hydraulic cylinder 31 is so "even" that even if the driver accidentally depresses the pedal portion U of the accelerator pedal unit 1 ,, the accelerator pedal unit 1 〇 is moved to the refueling position, The shaft portion 151 has not touched the first piston rod 312'. Therefore, the clutch unit 2〇 does not change to the joint shape. The P can interrupt the power transmission between the engine 100 and the transmission 200. Prevent the accidental overshoot of the car. After that, in the tight situation, the driver can of course release the brake pedal single ★ 5〇, so that:

The brake pedal unit 50 moves the current A to the 5th unloaded position (see Fig. 2), so that the electromagnetic push rod (4) of the electromagnetic room 14 moves to the extended position (see Fig. 2). Abutting against the pressed portion 152 of the connecting member 15, the shaft #151 of the connecting <15 is eccentrically rotated to approach the first hydraulic cylinder $-piston rod 312. Through the above description, the advantages of the present invention can be further summarized as follows: 1. The driver can control the clutch unit to be connected or interrupted only by pressing or releasing the accelerator pedal unit ι and the brake pedal unit 50. The engine is driven by the power transmission between the engine and the shifting mode. Therefore, the control method of the present invention is like a self-discharging vehicle, and the driver can learn the operation. 2. The clutch unit 20 of the present invention connects the power transmission between the % engine (10) and the transmission frame 13 by direct friction between the flywheel 21 and the motor 123, and therefore, when the driver steps on the accelerator pedal The greater the degree of the unit w, the tighter the flywheel 21 and the friction disc 23 are, so that the relative sliding between the engine 1〇〇 and the gearbox can be effectively prevented, and avoiding There is a problem of excessive fuel consumption between the engine speed and the transmission power output. ^When the driver releases the accelerator pedal unit 10 of the present invention, it is depressed. When the Xuanqi car pedal is 70 50, the clutch unit 2〇 will automatically change to the separated state, and the power transmission between the engine (10) and the shifting gear will be interrupted, so that the engine can be effectively prevented when the vehicle is suspended. Qing wastes power unnecessarily. 4. The driver only needs to step on the brake pedal unit 5〇 of the present invention to change the clutch unit 2〇 to the separated state, and interrupt the power transmission between the engine and the shifting mode 200, so even if driving The brake pedal unit 50 and the accelerator pedal unit 10 are simultaneously depressed at the same time, and the engine 100 is also unable to drive the transmission 200. Thus, the problem of accidental overshoot of the vehicle can be effectively prevented. It should be noted that the accelerator pedal unit 1 of the present invention may of course not be mounted on the connection #15, and directly use the electromagnetic push rod 141 of the electromagnetic valve 14 to push or move away from the first hydraulic cylinder 31. A piston rod su. As described above, the power control system and the control method thereof of the present invention are not only easy to operate, but also effectively reduce the fuel consumption of the engine, so that the purpose of the invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change of the scope of the invention and the description of the invention is Modifications are still within the scope of the invention.

15 t 厶\jy〇 [schematic description of the drawings] Fig. 1 is a schematic view showing the configuration of a preferred embodiment of the power control system of the present invention; the door pedal moves to a refueling position as early as possible; Fig. 3 is a view similar to the view i The brake pedal unit of the preferred embodiment moves to a brake position; and

A view showing the preferred Fig. 4A - similar to the view of Fig. 1, illustrating the accelerator pedal unit moving 〇 position ' while the brake pedal unit is moved to the brake position.

16 1322098 [Description of main component symbols] 100...engine 313...first return spring 110···... crankshaft 32...second hydraulic cylinder 200···...transmission box 321...second cylinder 210... ...the input shaft 322···...the second piston rod 10···...the accelerator pedal unit 323...the second return spring 11····the pedal portion 33....·...the linkage rod 12····...the operation unit 34 -_·· ...oil circuit 13... chamber 40····· ...stroke sensor 14 .... ... solenoid valve 50.... brake pedal unit 141... electromagnetic push rod 51 .... ... pedal portion 15 ·· ··Connecting member 52••... ••Operating unit 151...The shaft portion 53...the first bump 152···...the pressed portion 54.....the second bump 20...· ...clutch unit 60.···....... brake hydraulic valve 21 ···· ...flywheel 22 ···· ... housing 23 ··· ... friction disk 24 ···· ... driven disk 25 ···· ...reset spring 30 ·· ...actuating unit 31 ····...first hydraulic cylinder 311...first cylinder 312··...first piston rod 17

Claims (1)

1322098 X. Patent application scope: ι_ A power control system is installed on a vehicle body to control the power transmission between an engine and a gearbox of the vehicle body. The power control system comprises: a fueling position An accelerator pedal unit is movable between an unfueled position; a clutch unit is disposed between the engine and the transmission, and the clutch unit is switchable between a separate state and a connected state. The clutch unit interrupts the power transmission between the engine and the transmission when the clutch unit is in the disengaged state, and when the clutch unit is in the connected state, can connect the 5 engine and the shifting gear; And the actuating unit is disposed between the accelerator pedal unit and the clutch unit. When the accelerator pedal unit is in the refueling position, the accelerator pedal unit can drive the clutch unit to change to the connection via the actuating unit. In the unfueled position, the accelerator pedal unit is driven by the actuating element to drive the clutch to change: the sub-unit is further equipped according to the patent application scope. The power control system of the two items, the connecting member disposed in the chamber, wherein the throttle member has the connector member 18 1 . According to the power control system of the first aspect of the patent, wherein the pedal unit has a pedal portion a solenoid valve opposite to the operating portion of the pedal portion, a 3 opening/closing = the operating portion and opening toward the operating unit, and a solenoid valve disposed in the housing, the electromagnetic Electromagnetic (4) I, having 1322098 toward the actuating unit, has a shaft portion eccentrically pivoted on the operating portion, and a portion connected to the wheel portion and interposed between the shaft portion and the electromagnetic push rod Pushing department. 4. According to the patent application Fan Park 篦... J鞄围弟2 power control system, wherein the actuation unit has a first hydraulic cylinder adjacent to the accelerator pedal unit, and a section adjacent to the clutch unit a second oil dust cylinder, a linkage rod installed between the clutch unit of the second hydraulic cylinder, and an oil passage connected between the first and second hydraulic cylinders, the first hydraulic cylinder having a first cylinder, a movable 'ground mount' and a first piston rod extending in the first cylinder and extending toward the electromagnetic push rod of the solenoid valve, and a first cylinder and the first cylinder a first-rear expansion between the first piston rods. The second hydraulic cylinder has a second cylinder, a second movable body that is mounted in the second rainbow and extends toward the linkage rod. a piston rod, and a second spring disposed between the second cylinder and the second piston rod, the electromagnetic push rod can drive the first piston rod when the accelerator pedal unit moves to the refueling position Causing hydraulic oil in the first cylinder to be delivered to the second cylinder through the oil passage, forcing the second piston rod to drive the joint The lever swings to drive the clutch unit to change to the connected state. When the accelerator pedal unit moves to the unfueled position, the electromagnetic push rod is away from the first piston rod, and the first and second piston rods are respectively reset together. The starting position 'the hydraulic oil in the second cylinder is reversely conveyed to the first cylinder through the oil passage, and the linkage rod is reversely swung to the clutch unit to be converted into the separated state. 5. The power control system according to claim 3, wherein the actuating unit has a first hydraulic cylinder adjacent to the accelerator pedal unit, a second hydraulic cylinder adjacent to the clutch unit, and a loading a linkage rod disposed between the second hydraulic cylinder and the 19 1322098 clutch unit and an oil passage connected between the first and second hydraulic cylinders. The first hydraulic cylinder has a first cylinder a first piston rod movably mounted in the first cylinder and extending toward a shaft portion of the connecting member, and a first portion disposed between the first cylinder and the first piston rod a return spring, (4) two oil pressure red having a second cylinder, a second piston rod movably mounted in the S cylinder and extending toward the linkage rod, and - mounted on the second a second reset bomb between the cylinder and the second piston rod When the oil pedal unit moves to the refueling position, the shaft portion of the connecting member can drive the first piston rod, and the hydraulic oil of the first cylinder (four) is delivered to the second cylinder through the oil passage And forcing the second piston rod to drive the linkage rod to swing to drive the clutch unit to change to the connected state, when the accelerator pedal is single to move the unfueled position, the shaft portion of the connecting member is away from the first piston rod 'The first and second piston rods are respectively reset to a starting position, and the hydraulic oil in the second cylinder is reversely transported to the first cylinder through the oil passage, and the linkage rod is swung back to The clutch is in this separated state. The power control system according to claim 2, further comprising a brake pedal unit, and a stroke sensor adjacent to the brake pedal unit and electrically connected to the solenoid valve of the accelerator pedal unit, the brake The pedal unit is movable between an untwisted position and a brake position, and when the brake pedal unit is moved to the brake position, the brake pedal unit can press the stroke sensor to cause the stroke sensor to drive the solenoid valve The electromagnetic push rod is moved from an extended position to a retracted position away from the actuating unit, and when the brake pedal unit is moved to the untwisted position, the brake pedal unit can be moved away from the stroke 20 1322098 sensor to make the stroke The sensor drives the electromagnetic push rod of the solenoid valve from the retracted position to the extended position adjacent to the actuating unit. 7. The power control system according to claim 3, further comprising a brake pedal unit, and a stroke sensor adjacent to the brake pedal unit and electrically connected to the solenoid valve of the accelerator pedal unit. When the brake pedal unit moves to the brake position, the brake pedal unit can touch the stroke feeler, so that the stroke sensor drives the electromagnetic push of the solenoid valve The lever is moved from an extended position to a retracted position away from the pressed portion of the connecting member, at which time the shaft portion of the connecting member is eccentrically rotated away from the actuating unit, when the brake pedal unit is moved to In the untwisted position, the brake pedal unit can be remote from the stroke sensor, causing the stroke sensor to drive the electromagnetic push rod of the solenoid valve from the retracted position to the extended position, and abutting the connector At the pressed portion, at this time, the shaft portion of the connecting member is eccentrically rotated to be close to the actuating unit. 8. The power control system according to the scope of the patent application, wherein the clutch single TL has a flywheel mounted on a crankshaft of the engine, and a flywheel mounted on the flywheel for one of the gearboxes a housing into which the input shaft extends, a friction disk mounted on the input shaft toward one end of the flywheel, a driven disk movably mounted on the input shaft, and at least one mounted on the housing a return spring between the driven disk and the driven disk, when the clutch unit is in the connected state, the driven disk is moved to abut against the flywheel, when the clutch unit is in the separated state, The driven disk is detached from the friction disk. 21 1322098 9· A control method for a power control system, comprising: (A) stepping on an accelerator pedal unit such that a clutch unit mounted between an engine and a transmission connects the power between the engine and the transmission; And (B) releasing the accelerator pedal unit to interrupt the power transmission between the engine and the transmission. 10. The control method of the power control system according to claim 9 of the patent application, further comprising a step (A1) after the step (A), in which step a pedal unit is stepped on to make the clutch The unit interrupts the power transmission between the engine and the transmission. - 11. The control method of the power control system according to claim 10 of the patent application, further comprising a step (A2) after the step (A1), in which the brake pedal unit is released, The clutch unit is coupled to a power transmission between the engine and the transmission. 12. The control method of the power control system according to claim 9 of the patent application, further comprising a step (B1) after the step (B), in which a pedal unit is stepped on. 13. The control method of the power control system according to claim 12, further comprising a step (B2) after the step (B1), in which the brake pedal unit is released. twenty two