JPS62502114A - brake actuator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] brake actuator [Technical field] This invention is based on U.S. patent application Ser. No. 51, partially pending application, which relates to an automobile brake actuator. Sara Specifically, this invention automatically controls the running car when the driver leaves the driver's seat. Relates to an automatic brake actuator that stops the vehicle.

[Background of the invention] Emergency vehicles and emergency vehicles used by police, fire departments, and emergency services. In automobiles where the driver sometimes needs to leave the driver's seat in a hurry, In cases where the driver does not apply the brakes of the car, for example, automatic transmission In cars with transmissions, the gear lever may not be in the parking position or the manual Do not set the parking brake on cars with automatic transmissions. Such cases often occur. In such cases, the car starts moving without a driver. , collides with other cars and suffers various damage.

The assignee of this invention has four patents and patents already registered on the aforementioned subject matter. Has two patent applications pending. That is, it was first registered on December 30, 1969. Fontaine U.S. Pat. No. 3.487.451 [ Automobile brake control table 2f (Brake Control Means f or vehicles) J.

In this patent, an electric switch installed in the driver's seat allows the driver to drive. A system that automatically applies the car's brakes when it is detected that you have left your seat. Basic concepts are disclosed. Also, U.S. Patent No. 3.761.13 of 7 Ontain No. 8, No. 3, 845.932 and No. 3.888.552 also have automatic braking. The key operating mechanism is described. U.S. Patent No. 3,846,599 describes Gaspe A dull switch is disclosed.

[Automotive] Patent Application No. 06/346.551 filed on February 8, 1982 Brake actuation mechanism (Vehicle Brake ActuatorA#ang ement) J contains information about the control system for automobile brakes. are disclosed in more detail. This control system includes seat switches as well as It consists of electrical and pneumatic control elements.

Patent Application No. 061540.060 filed on October 7, 1983 Automatic Brake Actua tor with Controlled Release), automatic Brakes equipped with vehicle theft sensors and other sensors to increase the usefulness of the braking system. A rake control system is disclosed in detail.

This invention further improves the technology regarding automatic brake control.

This invention uses a medium to apply the brakes of a car instead of using a vacuum. In addition, the electrical control device has been improved to further improve performance.

Conventional techniques include the following. U.S. Patent No. 4,244.186 discloses a pilot-driven hydraulic brake system.

Fontaine U.S. Pat. No. 3,790,223 describes seat switches and soles. A brake control system with a noid valve is illustrated. U.S. Patent No. 3. No. 195,309 discusses the effects of worn brake shoes in manual brake systems. A braking mechanism is disclosed that helps reduce . Fontaine US Patent No. 3,895,698, there is a system that automatically brakes the vehicle according to various situations. An electrically controlled power brake system is disclosed that operates a key.

[Summary of the invention] This invention is an automatic brake using a brake driving medium other than vacuum, that is, hydraulic pressure. Regarding the system. This expands the technical range of conventional automatic brake activation mechanisms. It is. Hydraulic pressure is supplied from the car's hydraulic source, which is separate from the brake system. Ru. For example, hydraulic pressure from a back-steering system or some type of The compressed air that can be used in cars and the electrical system that cars are usually equipped with. It is like an electrically driven brake actuator that supplies power from the system. be.

[Purpose of the invention] It is an object of this invention to explore the range of conditions under which brake actuator systems operate. The brake actuator system is extended even further and the brake actuator system is In addition to operating under certain conditions, such as: That is. In other words, (1) If an unauthorized driver attempts to drive a vehicle.

(2) When the driver is not touching the accelerator pedal and the vehicle is stopped.

(3) If the engine fault indicator indicates a drop in oil pressure or the engine is When the condition indicates a condition that makes it impossible to drive, such as a bar fever. If you try to drive a car.

(4) If the hood or hood latch is not properly connected, If you try to drive a car.

(5) The driver is under the influence of alcohol, etc. and his/her ability to drive a car is impaired. If you try to drive a car when

If the collision prevention detection device (radar detection device), door or tailgate is open. In some cases, additional conditions may be added to the conditions for operating the brakes.

Other objects of the invention are the following description and claims made with reference to the accompanying drawings. This will become clear. The accompanying drawings constitute a part of this specification, and Elements with the same number in the drawings represent the same thing throughout the drawings. .

[Brief explanation of the drawing] Figure 1 shows the brake master cylinder and the brake actuator driven by vacuum. It consists of a brake booster that is driven by an ether and a conventional vacuum; FIG. 3 is an elevational view of an improved brake actuator driven by the brake actuator.

2 is a sectional view taken along line 2-2 of the brake actuator shown in FIG. 1. FIG.

Figure 3 is the first diagram showing the internal structure of the brake actuator and brake booster. FIG. 3 is a longitudinal cross-sectional view of the brake actuator shown in the figure.

Figure 4 is similar to Figure 3, but shows the brake actuator in the operating state. FIG.

FIG. 5 is equipped with a brake actuator and is explained in more detail in this invention. The motor vehicle is connected to the wheels by several parts of the control system. It is a line diagram showing the members of a moving vehicle.

Figure 6 uses hydraulic pressure to operate the brake, and also uses the master cylinder to operate the brake. FIG. 3 is a diagram of a brake actuator utilizing this effect in connection.

FIG. 7 is an enlarged view of the coupling device of FIG. 6.

Figure 8 is a detailed diagram of the hydraulic brake actuator showing more details of the control device. It is.

・Figure 9 is a sectional view taken along line 9-9.

Figure 10 shows a hydraulic brake that also uses vacuum to actuate the brake. FIG.

Figure 11 shows the main purpose of this invention, which is to control the brake actuator. 3 is a block diagram for a control circuit.

Figure 12 details the keypad circuit for releasing the brake actuator. This is a detailed circuit diagram.

Figure 13 shows the main brake control circuit for controlling the brake actuator. FIG.

FIG. 14 is a circuit diagram showing the seat switch delay circuit.

Figure 15 shows a tachometer response circuit to detect that the speed of the car is zero. FIG.

FIG. 16 is a diagram showing an electric brake actuation mechanism.

[Explanation of Examples] Examples of the present invention will be explained below, but before that, the examples shown here will be explained below. without limiting the scope of the invention and without departing from the spirit and scope of the invention. It should be noted that it is also possible to realize this in some way. Also, used here The terms used are also for descriptive purposes and are not intended to limit the invention.

The present invention is based on the prior patent application mentioned above and further extends its scope.

FIG. 1 shows an embodiment of the present invention, in which a conventional master cylinder 11 is Become. The master cylinder 11 is connected to a brake actuator 12, This brake actuator 12 is further a brake booster having a conventional structure. It is connected to 13. Brake pedal on the right side of the drawing (not shown) The brake shaft 17 connected to the brake booster 13 and the brake It passes through the actuator 12 from the lateral direction and reaches the master cylinder 11. Bu The pressure applied to the rake shaft 17 is converted into hydraulic pressure in the master cylinder 11. This oil pressure is supplied to the vehicle's wheel brakes in a conventional manner via a hydraulic line 14. transmitted to the rake.

Vacuum line 15 is an actuator that controls air flow from an engine-driven vacuum source. It communicates with the tuator valve 16. The actuator valve 16 is a three-branch type 1 It is a 2V DC Skinner type valve and is electrically driven. actuator When the valve 16 is driven, a vacuum is created inside the brake actuator 12 and the brake actuator 12 is automatically activated. Stop the car.

Figure 2 shows the above-mentioned image that can be seen when Figure 1 is cut along line 2-2 and viewed in the direction of the arrow. Some of the members are shown. Figure 3 shows master cylinder 11 and brake gear. It is a sectional view of the actuator 12 and the brake booster 13, showing the inside of these members. The structure is shown in detail. Details of the internal structure can be found in the previously mentioned US patent application and patent application. No. 061,540.060, No. 06/346.551 and U.S. Pat. It is described in Patent No. 3,831,698.

FIG. 4 shows the component of FIG. 13 in the braked condition. At this time Space 18 is evacuated and pulls brake shaft 17 together. This is it As a result, the piston 21 of the master cylinder 11 is pushed, and the brake is activated.

FIG. 5 is a diagram showing a part of the automobile. For the front wheel 23 and rear wheel 22 A brake 24 is provided. The brake 24 is connected to the master cylinder 11. It is operated by a hydraulic line 14 that is connected to the engine. And this master cylinder 11 , brake actuator 12, brake booster 13 and brake pedal 2 6.

In the embodiment shown in the drawings, a gas pedal 27 is additionally provided. gas pedal 27 as disclosed in Fontaine U.S. Pat. No. 3,846,599. It has a similar electric gas pedal switch 28. Gas pedal switch 28 It is connected to an electronic control device 29.

The electronic control device 29 controls various electronic circuits and electronic components that constitute this invention. The details of this are described below.

The electronic control device 29 includes a seat switch 31, a gas pedal switch 28, and a tachometer. 32 and keypad 33 with button key 35 (button key) receives input.

In addition, the electronic control unit 29 includes many other components shown together in one box in the drawing. It also receives input from the input device 36 .

Input device 36 will be described in more detail below.

Electronic control unit 29 is connected to actuator valve 16 via line 29a. , control this. Brake light 37 is also electronically controlled via line 29G. Controlled by device 29.

The electronic control unit 29 has various types, as shown in the block diagram of FIG. It consists of various control circuits. Before explaining the details of Fig. 11, Figs. 6, 7, Other embodiments of the present invention will be briefly described using FIGS. 8, 9, and 10.

The automatic brake actuator 12 described so far has a vacuum It was of the type that operated by

In automobiles, especially those with diesel engines, this Using a vacuum pump driven by the engine with the manifold as the vacuum source , since vacuum is generally the easiest to use.

However, it is also possible to operate the brake actuator 12 by other media. It is connected to the brake system in a different way from the flow side shown above. It's okay. Figure 6 shows the wall of the housing so that the internal diaphragm 51 can be seen. This is a brake actuator 40 shown partially cut away.

The diaphragm 51 is connected to an intermediate draw rod 44, and this draw rod 44 is pivotally connected to lever 52 at pivot point 45 . The lever 52 is The intermediate shaft 46 has a fulcrum at a pivot point 48 and is pivotable at a pivot point 47. is attached to. The intermediate shaft 46 connects the brake booster 13 and the master shaft. It is provided between the cylinder 11 and connects them. Electrically driven and blurred - An air valve 41 that controls the key actuator 40 is connected to a vacuum source 43. There is. The pivot point 48 and the lever 52 are housed within the housing of the master cylinder 11. It is also possible to

The air valve 41 connects the lead wire 42 by an electronic circuit as shown in FIG. When driven through the brake actuator 40, the vacuum source 43 The space 53 is evacuated. As a result, the diaphragm 51 is moved by the draw rod 44. The lever is roughly connected to the draw rod 44 at the pivot point 45. -52 moves the short intermediate shaft 46 to the left to drive the master cylinder 11. Ru. The master cylinder 11 then operates the brake. The lever 52 is It is divided into a long arm 52a and a short arm 52b at the turning point 47, and the lever produce an effect. Due to the lever action of this lever 52, the master cylinder 11 is A greater force is applied according to this ratio. Therefore, smaller brake actuation The evaluator 40 is also sufficient. FIG. 7 shows the short intermediate shaft 46 in more detail. It is something that Intermediate shaft 46, sleeve 54 covering it, and lever A pivot bolt 56 is engaged with an engagement hole 58 that is laterally drilled in 52. There is. An axial hole 59 provided at the right end of the intermediate shaft 46 is a The tap end 61 of the shaft 62 is engaged. Around the tap end 61, A helical spring 57 is provided concentrically with this, and pressure is applied to the brake. When not in use, the two members, the intermediate shaft 46 and the booster shaft 62, are separated. I keep it in that condition.

Figure 8 shows a coupling device similar to that described above, but in this case the brake The actuator 65 is driven by hydraulic pressure supplied from a hydraulic pump 66. oil The pressure pump 66 is commonly used in automobile power steering systems. It is driven by the engine of the automobile via a pulley 67 so that the motor vehicle is driven. hydraulic flow Body flows through hydraulic line 68 in the direction indicated by the arrow. The hydraulic line 68 is electrically The right side of the brake actuator 65 via a controlled pilot valve 69 is connected to. The brake actuator 65 is a brake actuator shown in FIG. It has a diaphragm similar to the actuator 40 and a similar draw rod 44 and and a coupling device similar to that shown in FIG. Hydraulic Fluid Hydraulic Line 73 from the brake actuator 65 to the hydraulic pump 66. pie The rot valve 69 is connected via a lead wire 78 connected to the circuit shown in FIG. It is electrically controlled. Figure 9 is viewed from line 9-9 in Figure 8 in the direction of the arrow. This shows details of the lever 52. The lever 52 is the same as shown in FIG. Has a similar structure. Brake booster 13, master cylinder 11 and Details of the coupling device between them are also shown as before.

Figure 10 shows a commercially available hydraulic brake actuator 75, such as Bendix. ・Hydro Booster (Hy Use brake actuator 75 such as dro Booster) J etc. An example is shown below.

A commercially available brake actuator 75 is a so-called brake actuator, a part of which is shown in the drawing. It has what is called a valve spool 83. The valve spool 83 is a brake It forms part of the control member of the actuator 75. This valve spool 83 is commonly used in hydraulic control systems.

In an actual embodiment of the invention, valve spool 83 is a small valve actuator. 76. The valve actuator 76 is a diaphragm 77 and is powered by vacuum. Chamber on the left side of valve actuator 76 is connected to a conventional vacuum source via vacuum line 81. Vacuum line 8 1 and the valve actuator 76 is a conventional electrically operated air valve. Lube 79 is provided. The air valve 79 is connected to the first It is controlled by the control circuit shown in FIG. Hydraulic fluid is supplied via hydraulic line 82. It will be done.

In a normal brake mechanism, by depressing the brake pedal 26, the master Cylinder 11 is driven. When operating the brakes automatically, use the air valve. 79 to supply vacuum to the valve actuator 76. As a result, the bar The valve actuator 76 moves the valve spool 83 forward, and the hydraulic line 8 The master cylinder 11 is driven by the hydraulic pressure No.2. Then, the hydraulic line 14 The brakes are applied to the wheels through the

In the embodiments described so far, vacuum or hydraulic fluid is used as the driving medium. There is. By making appropriate and simple modifications to the device described above, it is possible to Compressed air may also be used. Then, for example, if driven by the circuit shown in diagram M11, Brakes can be applied electrically using an electric solenoid or a small electric motor. can be activated.

Alternatively, the brake actuator can be actuated by electrically supplying vacuum or hydraulic pressure. You may run it. In this case, for example electric motors, vacuum or hydraulic pumps etc. The power is taken from the car's electrical system.

Figure 16 shows how the medium that drives the brake actuator, such as vacuum, can be automatically 1 is a diagrammatic representation of the electrical system supplied by the vehicle's electrical system. 16th The figure shows the main components of the brake actuator described above. In other words, A brake pedal 26 connected to the brake booster 13 and a brake actuator a master cylinder 11 connected to a brake booster 13 via a motor 12; It is shown. The brake actuator 12 is operated by an actuator valve 16. is controlled. This actuator valve 16 is connected to the first It is controlled by the electronic control circuit shown in FIG.

The vacuum is supplied by an electric motor 92 and a vacuum pump 9 driven by the electric motor 92. 1. The electric motor 92 operates automatically via a vacuum regulator 93. Powered by am electrical system. The vacuum degree regulator 93 It is connected to the canister 15 for use and has a contact 94. Canister 15 When the degree of vacuum within the chamber falls below a predetermined level, the vacuum level is The contact 94 is closed when the contact 93 is detected. And contact 94 instead connects power from the car's power bus. As a result, the electric motor 92 becomes The empty pump 91 is driven. The vacuum pump 91 is turned on via the ζ check valve 15a. The air is removed from the canister 15, and the degree of vacuum inside the canister 15 is adjusted to a predetermined level. Set to bell. Then, the vacuum regulator 93 opens the contact 94. , the drive of the vacuum pump 91 by the electric motor 92 is stopped. In these systems , obviously depending on the storage capacity of the electrical system, the braking energy will be reduced over a long period of time. can supply energy.

FIG. 11 shows the electronic control circuit in block diagram form. This electric The child control circuit includes a main brake control circuit 109. Main brake system The control circuit 109 controls the brake by directly controlling the actuator valve 16. control actuator 12.

The primary brake control circuit 109 connects to a number of secondary control units, including: It is continued. The seat switch delay circuit 101 is connected to the seat switch 31 and Receive signals from A pair of make contacts provided on the seat switch 31 The seat switch delay circuit 10 is closed when the driver is in the driver's seat. Supply a positive voltage to 1. The seat switch delay circuit 101 includes a pair of breaks. A contact 102 is provided. Break contact 102 is a seat switch Controlled by delay circuit 101. The driver was hit on the road and jumped up in the driver's seat. In such a case, the seat switch 31 is temporarily opened (but the break contact 1 is closed). 02 plays the role of connecting the seat switch 31 at such times. Seat switch 31 and the break contact 102 of the seat switch delay circuit 101 are connected to the lead wire 10. 1a to an optional engine fault indicator 103. ing. When an engine trouble that causes the engine to malfunction is indicated. The break contact 1 that the engine fault indicator 103 has 03a opens. Break contact of engine fault indicator 103 103a is in turn connected to an optional radar proximity circuit 104. Near radar The grounding circuit 104 is attached to the front of the car, and the front of the car is likely to collide. When this happens, the brake contact 104a is opened to apply the brake.

The break contact 104a of the radar proximity circuit 104 then It is connected to the alarm circuit 105. If you tamper with the car, this will be detected and Break contact 105a opens to apply the brake.

The break contact 105a of the burglar alarm circuit 105 then It is connected to the control circuit 106. If the driver is under the influence of alcohol or drugs When you try to drive the car in this state, the brake contact 106a opens and the brake key is applied.

The break contact 106a of the sobriety control circuit 106 is then connected to the optional keypad. It is connected to the head circuit 34. Before the driver tries to start the car, If you key in the wrong code for code 33, break contact 34a will open and the brake will break. key.

The break contact 34a of the keypad circuit 34 is then connected to the optional food driver. It is connected to the switch circuit 107. Break when the hood latch is open. Contact 107a opens to apply the brake.

The break contact 107a of the hood latch circuit 107 is then It is connected to a miscellaneous circuit 110. car In addition, when unspecified and miscellaneous situations occur that cause inconvenience while driving, use the brake The rake contact 110a opens and the brake is applied. inconvenient for driving a car For example, a locked car door or tailgate may be open. It refers to the case where a switch indicating that the situation is turned on, or various other situations.

The break contact 110a of the miscellaneous circuit 110 is then It is connected to the meter response circuit 108.

Tachometer response circuit 108 is connected to tachometer 32. Tachometer 32 is connected to the car's speedometer cable and measures the speed of the car. Tacome The data response circuit 108 has a pair of break contacts 108a. When the speed is decelerated to zero, this break contact 108a opens and brakes. key is applied. The tachometer response circuit 108 is a delay pack (delay pack). ck), and when this is activated, the driver must also keep the vehicle stationary. It is no longer necessary to press the brake pedal 26 or the brake pedal 26.

The above-mentioned break contacts 102, 103a, 104a, 10 connected in series 5a, 106a, 34a, 107a.

The entire break contact chain 147 consisting of 110a, 108a is It is connected to the brake control circuit 109.

Any one break contact in the break contact chain 147 opens When this occurs, the main brake control circuit 109 is activated to apply the brakes.

The main brake control circuit 109 connects the actuator valve 1 via a lead wire 78. Control 6. Break contact chain with break contacts connected in series If the valve 147 is shut off at any point, the actuator valve 16 will respond accordingly. actuates the brake actuator 12.

The main brake control circuit 109 is also responsive to operation of the gas pedal 27. . Gas pedal 27 has a corresponding gas pedal switch 28-. gas pedals A pair of make contacts of the switch 28 are made to the main brake control circuit 109. to release the brake actuator 12. The main brake control circuit 109 Furthermore, it is connected to the brake light 111 attached to the rear or upper part. There is. The brake light 111 lights up automatically when the car is stopped. shows.

The structure of each control block has been outlined above, but next we will discuss these details. I will explain further.

FIG. 14 shows the seat switch delay circuit 101. When the seat switch 31 is closed, A positive voltage is applied to the negative input terminal 4 of the amplifier 121 via a resistor R1.

Negative input terminal 4 is also grounded by connecting capacitor C1 and variable resistor vR1 in parallel. has been done. The time constant determined by capacitor C1 and variable resistor VR1 is usually several seconds. Therefore, the potential of the output 2 of the amplifier 121 is kept low. So for a few seconds transistor 122 is in the off state and relay RLI is in the inactive state, and Break contact 123 remains closed. Seat switch 31 is for driving It is closed when the person is sitting in the driver's seat, but for some reason it keeps opening and closing. , even if the contact is temporarily opened, it is not connected to the negative input terminal 4 of the amplifier 121. The connected capacitor C1 keeps relay RLI inactive for a few seconds. . Other components such as Zener diode Z1, resistor R2゜R3, R4 etc. are well known. The operation of the amplifier 121 is assisted by the following method.

FIG. 15 shows details of the tachometer response circuit 108. tachometer response The circuit 108 consists of three amplifiers 126, 127, 128 connected in series. ing. A tachometer 32 (FIG. 11) is connected to the input of the amplifier 126. . The tachometer 32 connected to the speedometer cable is basically of the well-known IIi construction. It consists of a small alternating current generator with a The alternating current generator in this case depends on the speed of the car. Generates an alternating voltage with a proportional frequency. AC entering the input of amplifier 126 The voltage is amplified and rectified by the network 129 enclosed in the dotted box in the figure. and filtered. The output from network 129 is the negative of amplifier 127. Connected to input terminal 4. The output from network 129 is amplified by amplifier 127. filtered by a network consisting of resistor R5 and capacitor C5. It will be done. The filtered signal is amplified via Zener diode Z2. 128 is connected to the negative input terminal of the device 128. The positive input terminal 11 of the amplifier 128 has a A diode Z1 and a resistor R6 are connected in parallel.

The amplifier 128, which has Zener diodes Zl and Z2 connected to its input terminals, has a threshold voltage. form a hold circuit. Therefore, the input voltage of amplifier 128 is Ord Z1. greater than a certain threshold level determined by Z2 , the output of amplifier 128 is small, and conversely, when the input voltage is below the threshold level, the output of amplifier 128 is small. If the voltage is also small, the output of amplifier 128 will be positive, turning transistor 131 on. do. Transistor 131 in the on state operates relay RLI, and its brake open the contact 132a. By opening the break contact 132a, Then, the relay 133 is temporarily activated (after about 4 seconds) via the capacitor C9.

By activating the relay 133, the break contact shown in FIG. Break contact t-108a in chain 147 is temporarily opened.

The configuration of the keypad circuit 34 of FIG. 11 is shown in detail in FIG. . Keypad 1 with n keys KP1 to KPn is shown in the dashed box in the drawing. 41 is shown.

To release the brake actuator, a predetermined key, e.g. key KP1- KP4 is a keypad that operates one key at a time using the procedure shown below. It is necessary for the head circuit 34. The keypad circuit 34 may be operated by four people, for example. Four NAND gates A1. B1. Consists of C1 and DI. NAND game G A1, 81. Flip flop FFA, FFB, FFC, F on each evening of CI and DI Driven by an appropriate combination of FDs. Flip-flop FFA, FFB.

Each of the FFC and FFD has a pair of output terminals, and the output of the lower terminal is the output of the upper terminal. It is the negation of the child's output. In other words, for example, the upper output A of the flip-flop FFA is high when flip 70 knob FFA is set and low when cleared. - is. And the lower output A is high when the flip-flop FFA is cleared. It is high and low when set.

Therefore, when the keypad circuit 34 is cleared, the input to the NAND gate △1 is As a result, the upper input S of the two-man NAND gate A3 is high. It goes high through inverter A2. Here, the keypad circuit 34 Start cutting. Operate the first key KPI to change the voltage from +12pol1 to N It is added to the lower input R of AND gate A3.

NAND gate A3 operates, and input S of flip-flop FFA becomes low.

The flip-flop FFA is a so-called J-type flip-flop, and the input S Respond to falling edge. Therefore flip-flop FFA is set and the output A goes high and the output λ goes low. The remaining three flip-flops FFB, FFC and FFD are still in a cleared state.

As a result, the four NAND gates B1 with inputs A, Lc, and o are while NAND gate A1 is disabled. Similarly, flip To set the flip-flop FFB, it is necessary to operate only the key KP2. too However, even if other keys such as key KP3 are operated, NAND gate C1 is not activated at this time. Since it is not enabled, it has no effect on the flip 70 tube FFC. . Also, even if one of the keys KP5-KPn is operated by mistake, the four flip 70 knobs FFA, FFB, FFC, FFD are all reset. because, 12 volts is applied to the upper input of NAND gate 143 via OR gate 142. is high, and the lower input of NAND gate 143 has a tacho signal. Output lead wire 145 from the motor response circuit 108 is connected via the inverter 144. Therefore, if the speed of the car is slow, the lower input of NAND gate 143 is This is because power becomes high. Thus, the output of NAND gate 143 becomes low. , flip-flop FFA via AND gates A4-D4.

Added to input R of FFB, FFC, FFD, all 7 lip flop FFA , FFB, FFC, and FFD are reset.

Returning to the operation of key KP2, the second 7 lip-flop FF8 is now set. will be cut. With inputs A, B, C, T5, by a method similar to that described above, The third NAND gate C1 is set by operating only the third key KP3. , Similarly, the fourth flip-flop FFD is activated by the fourth key KP4. Set.

All four flip-flops FFA, FFB, FFC, FFD are set and input A to NAND gate G1.

B, C, and D all go high, and the output of NAND gate G1 goes low. this As a result, relay 03 is driven via driver G2, which was explained earlier in the explanation of FIG. The break contact 34a described above is closed. This is brake actuator 1 This is one of the conditions for releasing 2. This condition indicates that the car may be moved. This is expressed as "green condition". The opposite is true for Red Conde. tion”.

A "red condition" occurs under the following conditions: In other words, all free Flop FFA, FFB, FFC;.

FFD cleared, thus NAND gate with 4 inputs A, B, C, U Enable gate R7 and operate relay R3 to close its break contact 1. 46, and click the brake button shown below in Figure 12 or in the dashed box in Figure 13. Occurs when the contact chain is interrupted.

A portion of the keypad circuit 34 drawn at the bottom of FIG. This is to reset the FFA, FFB, FFC, and FFD. connects 2 and the seat switch to a relay with one end of the coil connected to a positive 12 volt power source. The break contact chain 147, which includes chain 31 and all the circuits in FIG. Consists of circuits connected in columns. The lead wire 148 is the main brake control circuit shown in Fig. 13. 109 and grounded via relay R1 in the main brake control circuit 109. It is. The ground side of relay R1 is also connected to the negative side of the car's electrical N system. It is connected. Before the entire chain is closed, relay 2 in Figure 12 is in operation. positive 12 volts through the lower input terminal of OR gate 142. is applied to the upper input terminal of NAND gate 143. NAND gate 143 Since low power is input from the tachometer response circuit 108 to the lower input terminal of the The inputs R of all flip 70 tubes FFA, FFB, FFC, and FFD are low.

When the driver sits in the driver's seat, the seat switch 31 switches to the break contact chain. gate 147 closes, relay 2 operates, and the lower input of OR gate 142 becomes low. Become. As a result, the output of NAND gate 143 goes high and all 7 The input R of the 70-tube FFA, FFB, FFC, and FFD becomes high. Input R is high Therefore, the keys KP5-KPn flops FFA, FFB, FFC, FF D is cleared.

FIG. 13 shows details of the main brake control circuit 109. main brake The operation of control circuit 109 is described in the previously referenced U.S. Patent Application No. 061540.060. It is explained in detail in Figure 6 of the issue, and the notation is maintained in Figure 13 as well. held. This will be explained below with reference to FIG. 13 of this specification.

Relay R1 includes the ignition key 82, seat switch 31, and brake contact. A 12-volt battery 87 is connected via a power chain 147, and the Relay R1 is grounded. When relay R1 operates, its contact r1 is closed, and relay R2 is ready for operation. However, relay R2 is shown in Figure 5. The make contact 84 of the gas pedal switch 28 closes and the coil circuit is connected. It will not work until

When the gas pedal 27 is pressed, the make contact 84 closes and the relay R2 operates. . The operation of relay R2 is based on the break contact chain 147 of seat switch 31. remains in operation by being grounded through its own make contact r2'' until it opens. .

When relay R2 operates, contact r2-also closes two coils 31.98 Excite. Coil 31 forming part of actuator valve 16 of FIG. removes the actuator medium to the brake actuator 12, thereby This releases the hydraulic pressure applied to the brake. The coil 98 is inserted into the air flow path. This is a coil that operates an optional valve. This valve is a brake actuator. actuator 12 to reduce the speed of airflow and brake operation more slowly. Make it crisp and smooth. Regarding this second valve, the above-mentioned patent application No. 0 No. 61540.060.

circuits, namely engine fault indicator 103, radar proximity circuit 104 , theft alarm circuit 105, drinking IIJili1 circuit 106, food ludge circuit 10 7. The operation and structure of the miscellaneous circuit 110 are the same as those of the automobile to which this invention is applied. Depends on type. Additionally, these circuits typically have different rigidities from different manufacturers. provided in the form of Use one or more of these optional circuits If not connected or not grounded, the break contact chain 147 should be jacked. The circuit must be kept closed by a power amplifier wire (not shown). stomach.

FIG.2 FIo, 3 FIG.4 world FIG. 11 international search report

Claims (18)

[Claims] (1) Has a release switch and pressure medium source for the brake actuator A brake actuator for an automobile equipped with a hydraulic brake system, which Rake actuator housing, parts movable by pressure medium, and coupling device and a brake actuator control device, which is movable by the pressure medium. a member is disposed within the brake actuator housing and configured to actuate the brake; Separate the actuator housing into a pressure side and a non-pressure side. The coupling device connects the movable member by the pressure medium to actuate the brake. It is connected to the master cylinder 11, and the brake actuator control device is connected to the master cylinder 11. , when it is necessary to actuate the brake, the pressure medium is activated accordingly. said release switch for driving the moving member and also for stopping the operation of the brake; A brake actuator characterized in that it can also be controlled. (2) The master cylinder 11 and brake booster 13 are part of the brake system. A brake pedal 26 that assists in driving and also applies brakes to the vehicle; The brake pedal 26 and the brake booster 13 are connected to each other to drive the brake booster 13. 13, and the brake valve for driving the brake. A coupling device provided between the starter 13 and the master cylinder 11. The brake actuator according to the range 1 above. (3) When it becomes necessary to apply the brakes to the vehicle, the following instructions are given. If the driver leaves the driver's seat, the tachometer response If circuit 108 detects that the speed is zero, theft alarm circuit 105 If the keypad circuit 34 indicates that there is a risk of theft, an incorrect number If a character is input, the hood latch circuit 107 detects that the hood latch is open. If so, the alcohol control circuit 106 detects that the driver is under the influence of alcohol. If this is detected, the radar proximity circuit 104 detects whether the vehicle is getting too close to another vehicle, etc. If it is detected that the If it is detected that it is necessary to 3. The brake actuator according to claim 2, wherein the brake actuator is (4) The brake actuator control device is connected to the main brake control circuit 109. A seat switch 31 and a seat switch delay circuit 101 that responds to this seat switch. The main brake control circuit 109 is required to operate the brakes on the vehicle. In response to this, the seat switch delay circuit 101 causes the seat switch to The release of the switch 31 is delayed so that the seat switch 31 09, and is characterized in that it is operably connected to 09 and applies brakes to the motor vehicle. The brake actuator according to claim 3. (5) Acting on the main brake control circuit 109 to control the brake actuator. It has an actuator valve 16 for controlling the pressure medium used for driving. The brake actuator according to claim 4, characterized in that: (6) The brake according to claim 2, wherein the pressure medium is a vacuum. -Key actuator. (7) The member movable by the pressure medium is a diaphragm 51. The brake actuator according to claim 6. (8) a vacuum canister 15 for the accumulated vacuum and said pressure medium source and said vacuum; and a check valve 15a provided between the empty canister 15 and the vacuum canister 15a. A canister 15 communicates with the actuator valve 16 and supplies vacuum thereto. The brake actuator according to claim 7, characterized in that: (9) The degree of vacuum in the electric vacuum pump 91 and the vacuum canister 15 has decreased. a vacuum regulator 93 for detecting that the electric vacuum pump 91 is It acts according to the vacuum degree regulator 93 and supplies vacuum to the vacuum canister 15. 9. The brake actuator according to claim 8, wherein: (10) Claim 2, wherein the pressure medium is a hydraulic fluid. brake actuator. (11) Claim 10, wherein the pressure medium source is a hydraulic pump. Brake actuator as described in section. (12) The member movable by the pressure medium is a hydraulic piston, and the hydraulic piston Claim No. 1, characterized in that a hydraulic cylinder containing a cylinder therein is provided. Brake actuator according to item 11. (13) The connecting device has a lever 52, and this lever 52 is further short with the fulcrum. and a long part, the short part driving the master cylinder 11; The long portion acts with the hydraulic piston to drive the master cylinder 11. The brake actuator according to claim 12, characterized in that: (14) The hydraulic cylinder further includes a spool and a spool driven by a vacuum. controller, the spool 83 controls the hydraulic piston, and the spool 83 controls the hydraulic piston. Claims characterized in that a pool controller controls the spool 83. Brake actuator according to item 12. (15) The brake actuator control device is an engine fault indicator. data 103, radar proximity circuit 104, theft alarm circuit 105, and alcohol control circuit 106, keypad and keypad circuit control circuit, and hood latch monitor. circuit 107, tachometer response circuit 108, and seat switch delay circuit 10 1 and a miscellaneous circuit 110. Brake actuator included. (16) A brake light 111 responsive to the main brake control circuit 109 is installed. the vehicle is in a state where the brakes are applied. The brake actuator according to claim 4. (17) Master cylinder 11 and pressure medium for brake actuator Brake actuators for automobiles equipped with hydraulic brake systems with There is a brake actuator housing and a member movable by a pressure medium. , a coupling device, and a brake actuator control device, A movable member is provided within the brake actuator housing. , separate the brake actuator housing from the pressure side and the non-pressure side. the coupling device is movable by the pressure medium to actuate the brake; A member is connected to the master cylinder 11, and the brake actuator control member is connected to the master cylinder 11. The control device responds to the pressure medium when it is necessary to apply the brake. Thus, driving the movable member, the master cylinder 11 is connected to the lower part of the coupling device. What is claimed is: 1. A brake actuator that includes at least a part of the spider therein. (18) A brake booster 13 that helps drive the brake system and a brake booster for the automobile. A brake pedal 26 for applying rake and a brake pedal 26 for driving the brake booster 13. A connecting device provided between the brake pedal 26 and the brake booster 13 for the purpose of and the brake booster 13 and master cylinder to drive the brake. 11. The brake according to claim 17, further comprising a coupling device provided between the brake and the actuator.