CN108263362B - Vehicle and hydraulic braking combined system thereof - Google Patents
Vehicle and hydraulic braking combined system thereof Download PDFInfo
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- CN108263362B CN108263362B CN201611257387.4A CN201611257387A CN108263362B CN 108263362 B CN108263362 B CN 108263362B CN 201611257387 A CN201611257387 A CN 201611257387A CN 108263362 B CN108263362 B CN 108263362B
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- 230000007246 mechanism Effects 0.000 claims description 11
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
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- Engineering & Computer Science (AREA)
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- Regulating Braking Force (AREA)
Abstract
A vehicle and a hydraulic braking combination system thereof are provided, and the vehicle comprises the hydraulic braking combination system, an electronic control unit, wheels and a brake pedal. The hydraulic brake combination system is connected with a brake push rod of a pedal and wheels, and comprises at least two brake master cylinders which are respectively used for generating brake pressure at least one wheel; a pressure lever device for transmitting the braking force from the brake push rod to the at least two master brake cylinders; and the at least two brake power assisting devices are correspondingly connected with the at least two brake master cylinders through the pressure rod device. The vehicle and the hydraulic braking combined system thereof utilize the compression bar device to connect at least two smaller and independently controlled braking actuating systems, can realize the independent control of the braking wheel cylinders of at least two wheels, realize the same functions as the braking actuating systems and the braking control systems, eliminate hydraulic components such as valves, pumps and the like in the prior art, and have simple structure and low cost.
Description
Technical Field
The invention relates to a vehicle and a hydraulic braking combination system thereof.
Background
Modern passenger vehicles usually have three modules: a hydraulic Brake Actuation system (Actuation/AT), a hydraulic Brake system (Chassis Brake/CB), and a Brake control system (e.g., ABS/ESP).
Brake actuation system protection: a pedal, a vacuum or electric booster, a master cylinder; it provides the braking hydraulic pressure: the force input to the brake pedal by the driver is amplified by the vacuum booster or the electric booster, and then the hydraulic piston of the brake master cylinder is pushed to output the brake hydraulic pressure.
The hydraulic braking system is arranged on four wheels and consists of a piston, calipers, friction plates and a brake disc; the brake disc and the wheel are tightly installed together, and after the piston obtains hydraulic pressure output by the actuating system, the caliper and the friction plate are pushed to clamp the brake disc to prevent the wheel from rotating, so that braking is realized.
The brake control system is installed between the actuating system and the braking system. The hydraulic pressure output by the actuation system may need to be adjusted to be delivered to the brake system CB under a variety of conditions, even in the absence of driver input, such as: when the vehicle runs on a wet, slippery, sandy, uneven road surface, the frictional force provided to the four wheels by the ground is not uniform, and the following driving disorder condition, which is not desired by the driver, is liable to occur: the brake input of the driver is too large, and the wheels are locked; when the vehicle is controlled improperly, the vehicle body rotates; the vehicle starts to slide down the slope; the brake control system can actively provide four-wheel independent actuation under the conditions of emergency brake assistance and the like. However, existing brake control systems (ABS/ESP) comprise a series of hydraulic mechanisms, such as inlet valves, outlet valves, hydraulic pumps, etc., which are automatically controlled by a control device in order to build up, reduce or increase brake pressure on the brake cylinders, or to actively build up brake pressure. The existing brake systems are therefore complex in construction.
Disclosure of Invention
An object of the present invention is to provide a vehicle and a hydraulic combined brake system thereof, which are simple in structure.
To this end, according to one aspect of the present application, there is provided a hydraulic brake coupling system, connected with a pushrod and a wheel, including at least two master cylinders for generating brake pressure at least one wheel, respectively; a pressure lever device for transmitting the braking force from the brake push rod to the at least two master brake cylinders; and the at least two brake power assisting devices are correspondingly connected with the at least two brake master cylinders through the pressure rod device.
According to one possible embodiment, the pressure lever arrangement comprises a first pressure lever which is pivotally connected to the output lever and which is pivotally connected to the brake push rod, and an output lever which is coaxially connected to the master piston of the master cylinder.
According to one possible embodiment, the end of the first pressure lever is pivotally connected to the first end of the output lever, the middle of the first pressure lever is pivotally connected to the brake push rod, the second end of the output lever is fixedly connected coaxially to the master piston of the master cylinder, or the second end of the output lever is connected to the master piston of the master cylinder in a manner that allows relative translational movement.
According to a possible embodiment, the pressure lever device comprises a second pressure lever and a connecting lever, two ends of the connecting lever are respectively connected with the middle part of the second pressure lever and the first pressure lever through pivots, and the second pressure lever is connected with the output lever through pivots.
According to a possible embodiment, the two ends of the connecting rod are respectively pivoted to the middle of the second pressure lever and to the end of the first pressure lever, and the middle of the second pressure lever is pivoted to the first end of the output lever.
According to one possible embodiment, the hydraulic combined brake system comprises four master cylinders and four brake boosters, each for generating brake pressure at four wheels; the pressure lever device comprises a pair of second pressure levers, a pair of connecting rods and two pairs of output rods, and the four brake power assisting devices are respectively connected with the corresponding brake master cylinders through the corresponding output rods.
According to one possible embodiment, the hydraulic combined brake system comprises three master cylinders and three brake boosters, wherein one master cylinder is used for generating brake pressure at two wheels, and the other two master cylinders are respectively used for generating brake pressure at one wheel; the pressure lever device comprises a second pressure lever, a connecting rod and three output rods, and the three brake power assisting devices are respectively connected with corresponding brake main cylinders through the corresponding output rods.
According to one possible embodiment, the brake booster comprises a motor, a rack and a gear, wherein the output shaft of the motor is connected with the gear, the gear is connected with the rack, and the rack is fixedly connected with the output rod.
According to one possible embodiment, wherein the rack is pivotally connected to the first pressure lever, such that the output lever is pivotally connected to the first pressure lever; or the output rod is in pivot connection with the first pressure rod, so that the rack is in pivot connection with the first pressure rod.
According to one possible embodiment, the brake booster includes a reduction mechanism, which is connected to the motor and the gear, wherein an input end of the reduction mechanism is connected to an output end of the motor, and an output end of the reduction mechanism is connected to the gear.
According to another aspect of the present application, there is provided a vehicle comprising the aforementioned hydraulic brake integration system, electronic control unit, wheels, and brake pedal.
According to one possible embodiment, the brake pedal has a braking intention sensing device for detecting a braking operation intention applied to the brake pedal, the braking operation intention including a depression depth, a depression speed, and a depression acceleration of the brake pedal.
According to one possible embodiment, among others, a wheel speed sensor and other sensors are also included, the other sensors including at least one of a yaw angle sensor and a steering wheel angle sensor, electrically connected to the electronic control unit.
According to one possible embodiment, the electronic control unit determines the driver's brake operation intention and determines the magnitude of the required brake assist force, and controls at least one of start and stop of the motor, the rotation speed, the running current, the rotation time or the rotation direction, based on the signals of the brake intention sensing means, and the wheel speed sensor and/or other sensors.
The vehicle and the hydraulic brake combined system thereof of the invention utilize the compression bar device to connect at least two smaller and independently controlled brake actuating systems, can realize the independent control of the brake wheel cylinders of at least two wheels, realize the same functions (such as normal brake function, anti-lock brake function, stable control function and the like) as the brake actuating system and the brake control system, eliminate the hydraulic parts such as valves, pumps and the like in the prior art, and have simple structure and low cost.
Drawings
Fig. 1 is a block diagram schematically illustrating a vehicle according to a preferred embodiment of the present invention.
FIG. 2 is a schematic circuit diagram of a vehicle according to a preferred embodiment of the present invention.
Fig. 3A is a schematic structural diagram of a first view of a pressure lever device of a hydraulic combined brake system according to an embodiment of the present invention.
Fig. 3B is a schematic structural diagram of a second perspective view of a pressure lever device of the hydraulic combined brake system shown in fig. 3A, wherein the second perspective view is substantially perpendicular to the first perspective view.
Fig. 4 is a block diagram schematically illustrating the structure of a vehicle according to another preferred embodiment of the present invention.
Fig. 5 is a block diagram schematically illustrating the structure of a vehicle according to still another preferred embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings.
Referring to fig. 1, the vehicle according to a preferred embodiment of the present invention includes a hydraulic brake integration system, an electronic control unit 28, wheels 260, and a brake pedal 1.
In the present application, "near side" or "rear side" refers to the side close to the brake pedal of the vehicle, and "far side" or "front side" refers to the side facing away from the brake pedal 1, i.e., close to the wheel 260.
The brake pedal 1 serves as a brake operating element. The brake pedal 1 may have a brake intention sensing device 10 to detect a brake operation intention applied to the brake pedal 1, and the brake operation intention may include a depression depth, a depression speed, a depression acceleration, and the like of the brake pedal. The braking intention sensing device 10 is, for example, a pedal displacement sensor, a booster diaphragm displacement sensor, a lever sensor, or other sensing device as long as it can detect a braking operation intention applied to the brake pedal 1. The braking intention sensing device 10 is electrically connected with the electronic control unit 28, the braking intention sensing device 10 converts the braking operation intention detected in the braking process of the brake pedal 1 into an electric signal and transmits the electric signal to the electronic control unit 28, and the electronic control unit 28 judges the braking operation intention of the driver according to the electric signal so as to control the hydraulic braking combination system.
The wheel 260 is provided with a brake wheel cylinder 25 and a brake disc 26, wherein the brake disc 26 and the wheel 260 are tightly mounted together, the brake wheel cylinder 25 is connected with the brake disc 26, the wheel 260 is also provided with a Wheel Speed Sensor (WSS)27, and the wheel speed sensor 27 is electrically connected with the electronic control unit 28. After the brake pressure is built up in the wheel cylinder 25, the caliper and the friction plate thereof are pushed to clamp the brake disc 26, and the wheel 260 is prevented from rotating, so that the brake is formed. The structure and connection relationship of the wheel 260, the wheel cylinder 25, the brake disc 26, the caliper and the friction plate are well known to those skilled in the art, and will not be described in detail herein.
The hydraulic brake combination system according to a preferred embodiment of the present invention includes a pressure lever device, four master brake cylinders 23 connected to the brake pedal 1 through the pressure lever device, and four brake servo units 18 respectively connected to the corresponding master brake cylinders 23.
The master cylinders 23 have master pistons 22, and each master cylinder 23 is connected to a wheel cylinder 25 on a corresponding wheel 260 via a hydraulic line 24. The master cylinder 23 may be any type of existing master cylinder, and its specific structure will not be described herein. It is understood that since each master cylinder 23 controls the wheel cylinders 25 on only one wheel, the master cylinders 23 can be provided with a smaller volume than the existing master cylinders.
The pressure lever device comprises a first pressure lever 130 and an output lever 138, wherein the first pressure lever 130 is pivotally connected with the brake push rod 11, preferably, the middle part of the first pressure lever 130 is pivotally connected with the brake push rod 11; the output rod 138 is connected coaxially with the master piston 22 of the master cylinder 23, and the output rod 138 may be fixedly connected to the master piston 22 or may be translationally moved relative to the master piston 22 in the axial direction of the master piston 22. A pair of second pressing rods 190 and a pair of connecting rods 135 are arranged between the first pressing rods 130 and the output rods 138, the connecting rods 135 are pivotally connected to the first pressing rods 130, preferably, a first end of each connecting rod 135 is pivotally connected to both ends of the first pressing rod 130, a second end of each connecting rod 135 is pivotally connected to a middle portion of the corresponding second pressing rod 190, and the output rods 138 are connected to both ends of the corresponding second pressing rods 190.
Specifically, referring to fig. 3A and 3B, the first pressing rod 130 of the pressing rod device is fixedly provided with pivots 131, 132, and 133, preferably, the pivots 131, 132, and 133 are perpendicular to the plane of the first pressing rod 130 and are respectively disposed at the middle portion and two end portions of the first pressing rod 130, wherein the pivot 131 is connected to the brake push rod 11, and the brake push rod 11 is provided with a pivot hole, which is combined with the pivot 131, so that the first pressing rod 130 pivots within the plane formed by the first pressing rod 130 and the brake push rod 11.
The first end of the connecting rod 135 is provided with a pivot hole which is coupled to the pivots 132 and 133, respectively, to pivot the connecting rod 135 in the plane formed by the connecting rod 135 and the first pressing rod 130, preferably, the connecting rod 135 is substantially coplanar with the first pressing rod 130 and the brake push rod 11.
Similarly to the first pressing rod 130, the second pressing rod 190 is fixedly provided with pivots 191, 192 and 193, preferably, the pivots 191, 192 and 193 are perpendicular to the plane of the second pressing rod 190 and are respectively arranged at the middle part and two end parts of the second pressing rod 190, wherein the pivot 191 is connected with the second end of the connecting rod 135, and the second end of the connecting rod 135 is provided with a pivot hole which is combined with the pivot 191 to enable the second pressing rod 190 to pivot in the plane formed by the second pressing rod 190 and the connecting rod 135. Alternatively, the plane formed by the second strut 190 and the connecting rod 135 may be substantially parallel or perpendicular to the plane formed by the first strut 130 and the brake push rod 11, for example, in the embodiment shown in fig. 3A and 3B, the plane formed by the second strut 190 and the connecting rod 135 is substantially perpendicular to the plane formed by the first strut 130 and the brake push rod 11. Preferably, in the present embodiment, the second end of the connecting rod 135 extends laterally such that the distance between the second end of the connecting rod 135 (connected with the second pressing rod 190) and the brake pedal 1 is closer to the distance between the first end of the connecting rod 135 (connected with the first pressing rod 130) and the brake pedal 1, thereby reducing the size and volume of the pressing rod apparatus. Alternatively, in the embodiment shown in fig. 2, it is also possible that the second end of the connecting rod 135 extends to the front side so that the distance between the second end of the connecting rod 135 and the brake pedal 1 is longer than the distance between the first end of the connecting rod 135 and the brake pedal 1.
Similarly, the output rod 138 is provided with a structure similar to the first end or the second end of the connecting rod 135, and is connected to the pivots 192 and 193 of the second pressing rod 190, so that the output rod 138 pivots in the plane formed by the output rod 138 and the second pressing rod 190, and the principle is the same and will not be described again. Because the strut mechanism employs the pivot connection described above, each output link 138 can independently perform translational motion independently of the other output links 138.
Referring to fig. 2, 3A and 3B, brake boosting device 18 may be any brake boosting device, such as any type of conventional electronically controlled brake booster or vacuum booster. In the embodiment, the brake boosting device 18 comprises a motor 180 and a rack 16, an output shaft of the motor 180 is meshed with a gear 17, the gear 17 is meshed with the rack 16, the motor 180 rotates to drive the gear 17 to rotate, and the gear 17 drives the rack 16 to move in a translation mode. The toothed rack 16 is fixedly connected to the output rod 138, so that a rotation of the motor 180 is converted into a linear translational movement of the output rod 138, which acts on the master piston 22 of the master cylinder 23 together with the braking force from the brake pedal 1. It will be appreciated that either one of the rack 16 and the output link 138 may alternatively be connected to the pivots 192, 193 of the second strut 190, as in fig. 3A and 3B, with the rack 16 being pivotally connected to the pivots 192, 193, thereby providing a pivotal connection between the output link 138 and the second strut 190. The motor 180 drives the rack 16 forward or backward, thereby increasing or decreasing the brake pressure in the brake wheel cylinder 25. Optionally, the brake boosting device 18 may further include a speed reducing mechanism disposed between the motor 180 and the gear 17, for example, an input end of the speed reducing mechanism is connected to an output end of the motor 180, and an output end of the speed reducing mechanism is connected to the gear 17, so that the rotational speed of the motor 180 is reduced and then transmitted to the rack 16. The motor 180 is electrically connected to the electronic control unit 28 via lines, in particular data lines.
The hydraulic brake combination system of the present invention further includes a brake fluid tank 29 connected to the master cylinder 23 through a hydraulic line. In the present embodiment, the master cylinders 23 are connected in series, and the master cylinders 23 share the single brake fluid tank 29. It is to be understood that the hydraulic combined brake system of the present invention may be provided with one brake fluid tank for each of the master cylinders 23.
The vehicle according to a preferred embodiment of the present invention further includes other sensors, such as a yaw angle sensor (IIS), a steering wheel angle sensor (LWS), etc., electrically connected to the electronic control unit 28, and transmits signals detected by the sensors to the electronic control unit 28.
When the vehicle brakes, the electronic control unit 28 determines the brake operation intention of the driver according to signals transmitted from the brake intention sensing device 10, the wheel speed sensor and/or other sensors, determines the magnitude of the required brake assistance, and the electronic control unit 28 sends signals for triggering and adjusting the motor 180 to the motor 180 of the brake assistance device 18, so as to control parameters of start and stop, rotating speed, operating current, rotating time, rotating direction and the like of the motor 180.
A method for operating a hydraulic combined brake system according to an embodiment of the present invention is described below. Here, the operation modes include a normal braking mode, a stability control mode, and an anti-lock braking mode.
During normal braking, the four master cylinders 23 and the brake booster 18 are operated in synchronization, and the brake pressures in the respective wheel cylinders 25 are substantially the same.
During braking, when the electronic control unit 28 determines that a certain wheel has an unstable running state such as locking, slipping, etc., based on signals from the braking intention sensing device 10, and the wheel speed sensors 27 and/or other sensors, the electronic control unit 28 individually controls the braking pressures of the brake cylinders 25 of the wheels in the unstable running state until it returns to the stable running state. For example, when the electronic control unit 28 determines that the vehicle is under-steered and the brake cylinders 25a in fig. 2 need to be actively boosted, the stability control mode is activated to send a control signal to increase the brake pressure in the brake cylinders 25a of the wheel while keeping the brake pressures in the brake cylinders 25 of the other wheels unchanged. Specifically, the electronic control unit 28 sends a signal to the motor 180a to control the motor 180a to rotate, so that the rack 16a moves forward, the output rod 138a is driven to push the master piston 22a of the master cylinder 23a forward, and the brake push rod 11 moves slightly forward, thereby increasing the brake pressure of the wheel cylinder 25a and keeping the brake pressure in the wheel cylinders 25 of the other wheels unchanged. For another example, when the electronic control unit 28 determines that the brake cylinder 25a is about to be locked and active pressure reduction is required for the brake cylinder 25a in fig. 2, the anti-lock mode is activated, and a control signal is sent to reduce the brake pressure in the brake cylinder 25a of the wheel while keeping the brake pressures in the brake cylinders 25 of the other wheels unchanged. Specifically, the electronic control unit 28 sends a signal to the motor 180a to control the motor 180a to rotate, so that the rack 16a moves to the rear side, the output rod 138a is driven to move the master piston 22a of the master cylinder 23a to the rear side, and the brake push rod 11 moves slightly to the rear side, thereby reducing the brake pressure of the wheel cylinder 25a and keeping the brake pressure in the wheel cylinders 25 of the other wheels unchanged.
Referring to fig. 4, the hydraulic brake combination system according to another preferred embodiment of the present invention has the same principle as the previous embodiment, except that: the hydraulic brake combination system of the present embodiment includes two master cylinders 23 and two brake boosters 18, each master cylinder 23 connecting wheel cylinders 25 on two wheels through a hydraulic line 24. Each master cylinder 23 may control wheel cylinders of wheels disposed on the same side (e.g., front side, rear side, left side, or right side) of the vehicle, or wheel cylinders of wheels disposed on a diagonal line of the vehicle (e.g., front left and rear right, front right, and rear left side). The ram arrangement includes a first ram 130 and an output ram 138, eliminating a second ram and connecting rod.
Referring to fig. 5, a hydraulic brake combination system according to another preferred embodiment of the present invention has the same principle as the previous embodiment, except that: the hydraulic brake combination system of the present embodiment includes three master cylinders 23 and three brake boosters 18, wherein one master cylinder 23 is connected to wheel cylinders 25 on two wheels (for example, two front wheels) through a hydraulic pipe 24, and the other two master cylinders 23 are connected to wheel cylinders 25 on one corresponding wheel (for example, left rear wheel or right rear wheel) through hydraulic pipes 24. The lever arrangement includes a first lever 130, a second lever, a pair of connecting rods and three output levers 138.
The vehicle and the hydraulic brake combined system thereof of the invention utilize the compression bar device to connect at least two smaller and independently controlled brake actuating systems, can realize the independent control of the brake wheel cylinders of at least two wheels, realize the same functions (such as normal brake function, anti-lock brake function, stable control function and the like) as the brake actuating system and the brake control system, eliminate the hydraulic parts such as valves, pumps and the like in the prior art, and have simple structure and low cost.
Although the invention is illustrated and described herein with reference to specific embodiments, the scope of the invention is not intended to be limited to the details shown. Various modifications may be made to these details without departing from the underlying principles of the invention.
Claims (13)
1. The utility model provides a hydraulic braking combined system, with brake push rod and wheel connection, its characterized in that: comprises at least two brake master cylinders, each for generating a brake pressure at least one wheel; a pressure lever device for transmitting the braking force from the brake push rod to the at least two master brake cylinders; and the at least two brake power assisting devices are correspondingly connected with the at least two brake master cylinders through pressure lever devices, each pressure lever device comprises a first pressure lever and an output lever, the first pressure lever is connected with the output lever through a pivot, the first pressure lever is connected with the brake push rod through a pivot, and the output lever is coaxially connected with the master piston of each brake master cylinder.
2. The hydraulic brake combination system according to claim 1, wherein: the end part of the first pressure lever is pivotally connected with the first end of the output lever, the middle part of the first pressure lever is pivotally connected with the brake push rod, the second end of the output lever is coaxially and fixedly connected with the main piston of the brake main cylinder, or the second end of the output lever is connected with the main piston of the brake main cylinder in a manner of relative translational motion.
3. The hydraulic brake combination system according to claim 1 or 2, characterized in that: the pressure lever device comprises a second pressure lever and a connecting rod, two ends of the connecting rod are respectively connected with the middle part of the second pressure lever and the first pressure lever through pivots, and the second pressure lever is connected with the output rod through pivots.
4. The hydraulic brake combination system according to claim 3, wherein: the two ends of the connecting rod are respectively connected with the middle part of the second pressure lever and the end part of the first pressure lever through pivots, and the middle part of the second pressure lever is connected with the first end of the output rod through a pivot.
5. The hydraulic brake combination system according to claim 4, wherein: the hydraulic brake combination system comprises four brake master cylinders and four brake power assisting devices, wherein the brake master cylinders are respectively used for generating brake pressure at four wheels; the pressure lever device comprises a pair of second pressure levers, a pair of connecting rods and two pairs of output rods, and the four brake power assisting devices are respectively connected with the corresponding brake master cylinders through the corresponding output rods.
6. The hydraulic brake combination system according to claim 4, wherein: the hydraulic brake combination system comprises three brake master cylinders and three brake power assisting devices, wherein one brake master cylinder is used for generating brake pressure at two wheels, and the other two brake master cylinders are respectively used for generating brake pressure at one wheel; the pressure lever device comprises a second pressure lever, a connecting rod and three output rods, and the three brake power assisting devices are respectively connected with corresponding brake main cylinders through the corresponding output rods.
7. The hydraulic brake combination system according to claim 1, wherein: the brake power assisting device comprises a motor, a rack and a gear, wherein an output shaft of the motor is connected with the gear, the gear is connected with the rack, and the rack is fixedly connected with the output rod.
8. The hydraulic brake combination system of claim 7, wherein: the rack is connected with the first pressure lever through a pivot shaft, so that the output lever and the first pressure lever are in pivot connection; or the output rod is in pivot connection with the first pressure rod, so that the rack is in pivot connection with the first pressure rod.
9. The hydraulic brake combination system of claim 7, wherein: the brake booster unit comprises a speed reducing mechanism, a motor and a gear, wherein the input end of the speed reducing mechanism is connected with the output end of the motor, and the output end of the speed reducing mechanism is connected with the gear.
10. A vehicle comprising a hydraulic brake combination system according to any one of claims 1 to 9, an electronic control unit, wheels and a brake pedal.
11. The vehicle according to claim 10, characterized in that: the brake pedal has a brake intention sensing device for detecting a brake operation intention applied to the brake pedal, the brake operation intention including a depression depth, a depression speed, and a depression acceleration of the brake pedal.
12. The vehicle according to claim 11, characterized in that: and the wheel speed sensor and other sensors are also included, and the other sensors comprise at least one of a yaw angle sensor and a steering wheel angle sensor and are electrically connected with the electronic control unit.
13. The vehicle according to claim 12, characterized in that: the electronic control unit judges the brake operation intention of the driver and the magnitude of the required brake assistance according to signals of the brake intention sensing device and the wheel speed sensor and/or other sensors, and controls at least one parameter of start and stop, rotating speed, running current, rotating time or rotating direction of the motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611257387.4A CN108263362B (en) | 2016-12-30 | 2016-12-30 | Vehicle and hydraulic braking combined system thereof |
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| CN201611257387.4A CN108263362B (en) | 2016-12-30 | 2016-12-30 | Vehicle and hydraulic braking combined system thereof |
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| CN108263362A CN108263362A (en) | 2018-07-10 |
| CN108263362B true CN108263362B (en) | 2022-04-01 |
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| CN112498322A (en) * | 2020-05-19 | 2021-03-16 | 上海擎度汽车科技有限公司 | Intelligent braking system integrating wheel speed sensor analysis |
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| CN102256841A (en) * | 2008-12-18 | 2011-11-23 | 罗伯特·博世有限公司 | Method for controlling the activation of a brake of a hybrid vehicle |
| CN201597587U (en) * | 2010-02-09 | 2010-10-06 | 刘建民 | Automobile hydraulic auxiliary brake device |
| CN102869552A (en) * | 2010-04-30 | 2013-01-09 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Braking system for motor vehicles |
| CN201792840U (en) * | 2010-07-22 | 2011-04-13 | 杜劲松 | Automobile emergency brake system |
| CN102390262A (en) * | 2011-09-08 | 2012-03-28 | 王悠 | Vehicle potential-energy recycling and safety brake control system |
| BR102012023080A2 (en) * | 2012-09-13 | 2014-10-14 | Reinaldo De Tarso Oliveira | AUTOMATIC PARKING BRAKE OPERATING SYSTEM |
| CN103112355A (en) * | 2013-03-01 | 2013-05-22 | 张建文 | Method and device for automatically cutting off oil and turning accelerator into brake in case of automobile speeding |
| CN103754209A (en) * | 2014-01-08 | 2014-04-30 | 同济大学 | Electronic hydraulic braking system |
| CN204567648U (en) * | 2015-02-11 | 2015-08-19 | 同济大学 | A kind of decoupling type EHB |
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