CN115539620A - Chest gear type electronic gear shifter and gear shifting system - Google Patents

Abstract

The invention relates to a hand-held gear type electronic gear shifter and a gear shifting system, which are used for reducing the overall cost of the hand-held gear type electronic gear shifter, improving the functional safety level of the gear shifting system and realizing the identification of the gear shifting intention of a driver. This formula electron selector is kept off to cup includes: the device comprises a shell assembly, a bosom barrier control assembly, a P barrier key assembly and a main PCB; the part of the hand-block control assembly penetrates through an opening arranged at one side of the shell assembly and extends into the shell assembly, and the main PCB is arranged in the shell assembly; the P gear key assembly is arranged on the hand gear operation assembly and sends a plurality of groups of P gear request signals to the whole vehicle controller when being triggered; a plurality of double-channel grating sensors are arranged on the main PCB, and the hand-held gear control assembly enables double output channels of the double-channel grating sensors to output level change signals representing the gear shifting intention of a driver to the vehicle control unit sequentially by cutting infrared rays between emitting electrodes and receiving electrodes of the double-channel grating sensors when gear shifting operation is carried out.

Description

Pocket-gear type electronic gear shifter and gear shifting system

Technical Field

The invention belongs to automobile parts, and particularly relates to a chest gear type electronic gear shifter and a gear shifting system.

Background

With the development of electronic shifters, the variety of electronic shifters is diversified. The gear lever type and knob type electronic gear shifter occupies most markets, but in recent years, with the control of the overall vehicle arrangement space and cost of each large main engine plant, the cup type electronic gear shifter is more and more favored. The hand-held type electronic gear shifter can save the arrangement space of the central control, and has the advantages of small size and low cost.

Most of huai shi keeps off formula electron selector on the existing market utilizes hall effect more, handles the signal that chip gathered, handled hall components and parts circuit output through integrated MCU on the main PCB board of selector, realizes through the CAN transceiver with the signal interaction of whole car. The bosom-gear type electronic gear shifter adopting the principle has the defects of complex structure, high material cost and high research and development cost of a gear shifting system framework.

Disclosure of Invention

The embodiment of the invention provides a hand-held gear type electronic gear shifter and a gear shifting system framework, which are used for reducing the overall cost of the hand-held gear type electronic gear shifter, improving the functional safety level of the gear shifting system and realizing the identification of gear shifting willingness of a driver.

The technical scheme of the invention is as follows:

the embodiment of the invention provides a chest gear type electronic gear shifter, which comprises: the device comprises a shell assembly, a bosom barrier control assembly, a P barrier key assembly and a main PCB; the part of the bosom block operation assembly penetrates through an opening arranged at one side of the shell assembly and extends into the shell assembly, and the main PCB is arranged in the shell assembly and is positioned below the part of the bosom block operation assembly extending into the shell assembly;

the P gear key assembly is arranged on the pregnant gear operation assembly and sends a plurality of groups of P gear request signals to the finished vehicle controller when being triggered;

wherein, main binary channels grating sensor and redundant binary channels grating sensor have been arranged on the main PCB board, the control assembly is kept in touch with through the cutting when shifting the operation infrared ray between the projecting pole of binary channels grating sensor and the receiving pole and infrared ray between the projecting pole of redundant binary channels grating sensor and the receiving pole make the dual output channel of binary channels grating sensor successively to vehicle control unit output represent the driver will of shifting level change signal and make dual output channel of redundant binary channels grating sensor successively to vehicle control unit output represent the driver will of shifting level change signal.

Preferably, the body stop operating assembly comprises:

a rail body disposed within the housing assembly on another side away from the opening;

the bosom-blocking handle is arranged in the shell assembly in a rotating mode around a metal pin fixed in the shell assembly;

a blocking pin slidably fitted to an end of the block handle facing the rail body;

the shading plate is fixedly assembled on the bosom stop handle and arranged facing the dual-channel grating sensor;

when the hand is kept off the handle and is shifted gear operation, the hand is kept off the handle and centers on the metal round pin rotates, drives keep off the position round pin along the track body slides, and drives the light screen cutting infrared ray between main binary channels grating sensor's projecting pole and the receiving electrode and infrared ray between redundant binary channels grating sensor's projecting pole and the receiving electrode.

Preferably, the blocking pin is slid in an axial direction thereof by a spring disposed in an end of the block handle facing the rail body; when the position pin slides along the track body along with the hand-held handle, the position pin is stressed by the acting force of the track body to extend into the hand-held handle and compress the spring, and when the hand-held handle is not subjected to gear shifting operation any more, the position pin is reset due to the resilience force of the spring;

one side of the rail body facing the gear pin is provided with a plurality of V-shaped gear grooves in one-to-one correspondence with the control strokes of the gear shifter.

Preferably, the housing assembly comprises:

the upper shell, the middle shell and the lower shell are sequentially arranged and fixed;

the upper shell and the middle shell are jointly surrounded to form an opening and an inner space for the hand-stopping handle to be inserted into, the track body is fixed on the middle shell, and the metal pin is fixed between the upper shell and the lower shell;

the main PCB is arranged between the middle shell and the lower shell and is pressed and fixed on the middle shell through the lower shell.

Preferably, the P-range key assembly includes:

a handle core, part of which extends into the handle block;

the FPC board is used for being connected with a vehicle control unit and is arranged inside the handle core;

a conductive rubber disposed inside the handle core;

a bezel disposed between the handle core and the pocket handle;

the P-gear key partially extends into the handle core, and triggers the conductive rubber to conduct the FPC board when being pressed, so that the FPC board sends a plurality of groups of P-gear request signals to the whole vehicle controller; the P-gear key returns under the action of resilience force of the conductive rubber when being loosened.

Preferably, when the hand-held gear handle is switched from the current gear to the first-order gear, the dual-output channels of the main dual-channel grating sensor and the dual-output channels of the redundant dual-channel grating sensor respectively output level change signals containing a low level, a high level and a low level to the vehicle control unit in sequence, and a first output channel of the dual-output channels sends the level change signals before a second output channel;

when the hand-held gear handle is switched from a current gear to a second-order gear, the dual-output channels of the main dual-channel grating sensor and the redundant dual-channel grating sensor respectively output level change signals containing low level, high level, low level, high level and low level to the whole vehicle controller in sequence, and a first output channel in the dual-output channels sends the level change signals before a second output channel;

when the hand-held gear handle is switched from a current gear to a next-order gear, the double-output channels of the main double-channel grating sensor and the double-output channels of the redundant double-channel grating sensor respectively output level change signals containing low level, high level and low level to the whole vehicle controller in sequence, and a second output channel in the double-output channels sends the level change signals before the first output channel;

when the hand-held gear handle switches from the current gear to the lower second-order gear, the dual output channel of main binary channels grating sensor with the dual output channel of redundant binary channels grating sensor respectively in proper order the output contain low level, high level, low level, high level and the level change signal of low level to vehicle control unit, and the second output channel in the dual output channel sends the level change signal in advance of first output channel.

Preferably, a guide groove is arranged on the inner wall of the handle core, and a guide rib assembled in the guide groove is arranged on the outer wall of the P-gear key;

the handle core is internally provided with a boss and a protrusion for limiting the moving stroke of the P-gear key in the handle core.

The embodiment of the present invention further provides a gear shifting system, including the above-mentioned hand-held electronic gear shifter, further including: vehicle control unit, vehicle control unit with P keeps off FPC board in the button subassembly and is connected, is used for acquireing multiunit P that FPC board sent keeps off the solicited signal, vehicle control unit still with main PCB board is connected, is used for based on the level change signal that main binary channels grating sensor's on the main PCB board dual output channel was sent successively with the level change signal that redundant binary channels grating sensor's on the main PCB board dual output channel was sent successively, confirms driver's will of shifting.

The invention has the beneficial effects that:

the integrated processing chip on the main PCB is cancelled, the product cost is reduced, the software development cost and the function safety development cost of the bosom-type electronic gear shifter can be directly reduced, especially the ASIL B function safety target can be realized by the R/N/D gear, and the ASIL C function safety target can be realized by the P gear.

Drawings

Fig. 1 is a disassembled schematic view of a pocket range type electronic shifter of an embodiment of the present invention;

FIG. 2 is a disassembled schematic view of the housing assembly and the main PCB board of the embodiment of the present invention;

FIG. 3 is a cross-sectional schematic view of a pocket stop operating assembly of an embodiment of the present invention assembled within a housing;

FIG. 4 is a schematic view of a visor of an embodiment of the present invention mounted on a visor handle;

FIG. 5 is a schematic view of a P-stop key assembly of an embodiment of the present invention assembled on a pocket stop handle;

FIG. 6 is a schematic view of a main PCB board of an embodiment of the present invention;

FIG. 7 is a schematic diagram of a dual channel grating sensor according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a conventional shift system architecture;

FIG. 9 is an architectural view of a shifting system of an embodiment of the present invention;

in the figure, 1-an upper shell, 2-a track body, 3-a stop pin, 4-a spring, 5-a hand stop handle, 6-a light screen, 7-a middle shell, 8-a main PCB, 9-a lower shell, 10-a metal pin, 11-FPC, 12-conductive rubber, 13-P stop keys, 14-a handle core, 15-a decorative ring, 16-a screw, 17-a main dual-channel grating sensor and 18-a redundant dual-channel grating sensor.

Detailed Description

The invention provides a pocket-type electronic gear shifter, wherein the switching of R/N/D gears is realized by operating a pocket-type handle, and the operation of P gear is realized by a P gear key at the end part of the pocket-type handle. Meanwhile, the embodiment of the invention also provides a gear shifting system, the hand-held gear type electronic gear shifter converts the gear shifting action into an electric signal and outputs the electric signal to the vehicle control unit, and the vehicle control unit provides working voltage for the hand-held gear type electronic gear shifter and collects and processes the electric signal sent by the hand-held gear type electronic gear shifter. Meanwhile, the circuits corresponding to the P/R/N/D gears are in a redundant design, so that the functional safety of the whole vehicle is improved.

Referring to fig. 1 and 2, an embodiment of the invention provides a five-point monostable hand-catch type electronic gear shifter, which comprises a shell assembly, a hand-catch operating assembly, a P-catch key assembly and a main PCB. Wherein R \ N \ D keeps off the position and keeps off the control subassembly through controlling the huai and realize, and P keeps off the position and keeps off the button subassembly through pressing P and realize.

As shown in fig. 1, the housing assembly is composed of an upper housing 1, a middle housing 7 and a lower housing 9 which are arranged in sequence. The upper shell 1 and the middle shell 7 are connected and fixed through two clamping structures and two threads, the upper shell 1 and the middle shell 7 are respectively provided with a blind hole for assembling a metal pin 10, and the blind holes arranged on the upper shell 1 and the middle shell 7 are symmetrically arranged. In addition, lower casing 9 is fixed through four places joint structure with well casing 7, and well casing 7 provides the installation location for main PCB board 8, and lower casing 9 is used for compressing tightly main PCB board 8 and fixes on well casing 7. The upper shell 1 and the middle shell 7 are jointly enclosed to form a cavity, and one side of the upper shell 1 and the middle shell 7 is provided with an opening communicated with the cavity.

Referring to fig. 3 and 4, the hand rest operating assembly includes a hand rest handle 5, a spring 4, a rest pin 3, a rail body 2, a metal pin 10, and a light shielding plate 6. Wherein one end of the hand guard handle 5 extends into the cavity through the opening formed by the upper shell 1 and the middle shell 7. The end of the hand-gear handle 5 is provided with a blind hole for mounting the spring 4 and the gear pin 3. The track body 2 is fixed on the side wall of the middle shell 7 and is arranged facing the stop pin 3, five V-shaped stop grooves are formed in the side wall of the track body 2 facing the stop pin 3 (the 5V-shaped stop grooves can limit the moving stroke of the hand retaining handle 5), the stop pin 3 is prevented from stopping in one V-shaped stop groove, the hand retaining handle 5 is prevented from being reset to the initial position, and the five V-shaped stop grooves respectively correspond to the upper second order, the upper first order, the initial position, the lower first order and the lower second order of the control stroke of the hand retaining type electronic gear shifter. The metal pin 10 is in interference fit with the hand lever 5 and serves as a rotation axis for the hand lever 5 to rotate relative to the housing assembly. When a driver operates the hand-held gear handle 5 to perform gear shifting operation, the gear pin 3 slides on the profile of the track body 2 facing the gear pin 3, and simultaneously slides axially along the blind hole of the hand-held gear handle 5, the gear pin 3 compresses the spring 4 to provide gear shifting force, and the structure determines the operating performance parameters of the hand-held gear type electronic gear shifter. Wherein light screen 6 and the downside joint of carrying the fender handle 5, light screen 6 sets up towards main PCB board 8, is provided with four baffles on the light screen 6. When the hand-stop handle 5 is operated, the light screen 6 rotates along with the hand-stop handle 5, and then the four stop blocks of the light screen 6 cut infrared rays between the emitting electrodes and the receiving electrodes of the main double-channel grating sensor 17 and the redundant double-channel grating sensor 18, so that the main double-channel grating sensor 17 and the redundant double-channel grating sensor 18 generate voltage changes, and the shifting action of a driver is converted into an electric signal. And the vehicle control unit judges the gear shifting intention of the driver according to the level change and the change time sequence of the received signal.

Referring to fig. 5, the P-range key assembly is composed of an FPC board 11, a P-range key 13, a handle core 14, a conductive rubber 12, and a bezel 15. The guide rib arranged on the outer wall of the P-gear key 13 slides along the guide groove arranged on the inner wall of the handle core 14, the boss arranged on the inner wall of the handle core 14 limits the lower stroke of the P-gear key 13, and the protrusion arranged on the inner wall of the handle core 14 limits the upper stroke of the P-gear key 13. The core electrical components of the FPC board 11 are two golden fingers, and the conductive rubber 12 can control the on-off of the golden fingers, so that the on-off of a P-type circuit on the FPC board 11 is realized. The action force of pressing the P-blocking key 13 is transmitted to the conductive rubber 12 through the P-blocking key 13, the conductive particles on the lower surface of the conductive rubber 12 can conduct golden fingers on the FPC board 11 after the conductive rubber 12 deforms, and therefore conduction of a P-blocking circuit on the FPC board 11 is achieved, and the FPC board 11 further sends a P-blocking signal request to the whole vehicle controller. When the P-gear key 13 is released, the P-gear key 13 is reset under the resilience of the conductive rubber 12.

Referring to fig. 6 and 7, the core electrical components of the main PCB 8 are two dual-channel grating sensors, the dual-channel grating sensors are used for converting the gear shifting action of the driver into level signals, one of the dual-channel grating sensors plays a main role, and the other dual-channel grating sensor plays a redundant role, so as to ensure that the R/N/D gear meets the functional safety ASIL B.

For the vehicle control unit, the P-shift request signal received from the FBC board 11 and the level change signal received from the main PCB board 8 only reflect the shifting intention of the driver, and whether the vehicle control unit switches the shift position or not needs to perform comprehensive judgment by combining the shifting signal, the speed signal of the vehicle, the door signal, the brake signal and other signals.

In the embodiment of the invention, a main double-channel grating sensor is taken as an example to explain the gear detection principle of the hand-held type electronic gear shifter:

when the hand-stop handle 5 is manipulated, the four stops on the light-shielding plate 6 cut the infrared rays between the emitter and the receiver of the main dual-CHANNEL grating sensor 17, thereby causing a change in the respective levels of CHANNEL1, CHANNEL2 of the main dual-CHANNEL grating sensor 17, specifically:

when the hand rest handle 5 is at the initial position, CHANNEL1 and CHANNEL2 of the main dual-CHANNEL grating sensor 17 are both at a low level;

when the hand stop handle 5 is switched from the initial position to the previous step, the line level changes of CHANNEL1 and CHANNEL2 of the main dual-CHANNEL grating sensor 17 are: low-high-low, but CHANNEL1 changes its level earlier than CHANNEL2; the whole vehicle controller does not respond to the change of the electrical level when the handle returns;

when the hand lever 5 is switched from the initial position to the second upper step, the line level changes of CHANNEL1 and CHANNEL2 of the main dual-CHANNEL grating sensor 17 are: low-high-low, but the level of CHANNEL1 changes earlier than CHANNEL2; the whole vehicle controller does not respond to the change of the electrical level when the handle returns;

when the bosom stop handle is switched from the initial position to the next step, the corresponding line level changes of CHANNEL1 and CHANNEL2 of the main dual-CHANNEL grating sensor 17 are as follows: low-high-low, but CHANNEL1 changes level later than CHANNEL2; the whole vehicle controller does not respond to the level change during return stroke of the handle;

when the hand lever 5 is switched from the initial position to the next second order, the line level changes of CHANNEL1 and CHANNEL2 of the main dual-CHANNEL grating sensor 17 are as follows: low-high-low, but the level of CHANNEL1 changes later than CHANNEL2; the vehicle control unit does not respond to the change of the electric level when the handle returns.

In conclusion, the vehicle control unit can judge the operation action of the hand lever 5, that is, the gear shifting intention of the driver by acquiring the voltage change and the change time sequence in the level change signals output by the CHANNELs 1 and 2 of the main dual-CHANNEL grating sensor 17. The CHANNELs 3 and 4 in the redundant double-CHANNEL grating sensor 08 are used as redundant signals, so that the reliability and the safety of the gear shifting system are improved.

Referring to fig. 8, a conventional electronic gear shifting architecture includes a hand-held switch assembly, a wire harness, and a vehicle control unit, wherein the hand-held switch assembly includes a power module, a signal acquisition module, a key module, a MCU, an LED module, and a CAN transceiver, and the hand-held switch assembly and the vehicle control unit are communicated with each other through a CAN.

Referring to fig. 9, an embodiment of the present invention further provides a gear shift system architecture, where the gear shift system architecture is composed of a hand-held electronic gear shifter, a vehicle control unit, and a wire harness. The vehicle control unit provides a power source 1 for the hand-held type electronic gear shifter, collects signals of CHANNEL1 (output CHANNEL 1) and CHANNEL2 (output CHANNEL 2) sent by the main dual-CHANNEL grating sensor 17, and realizes a main dual-CHANNEL grating circuit loop through GDN1 (I/O signal). Meanwhile, the vehicle control unit provides a power source 2 for the hand-held type electronic gear shifter, acquires signals of CHANNEL3 (output CHANNEL 3) and CHANNEL4 (output CHANNEL 4) sent by the redundant dual-CHANNEL grating sensor 18, and realizes a redundant dual-CHANNEL grating circuit loop through GDN2 (I/O signal) of the vehicle control unit. The main/redundant dual-channel grating sensor is used for switching R/N/D gears, is used for adopting a redundant design, and can realize that the R/N/D gears meet the ASIL B function safety target. In addition, the FPC board 11 of the hand-held type electronic gear shifter sends two groups of P-gear signals to the vehicle controller, the vehicle controller collects analog signals of a P-gear circuit, and a P-gear circuit loop is formed through GND3 (analog signals). When an electrical element of the P-range circuit fails, a specific voltage value output by the P-range circuit changes, for example, when a resistor in the P-range circuit is short-circuited or broken, the voltage value output by the P-range circuit is different. The vehicle control unit collects analog signals of the P-gear circuit, namely the vehicle control unit collects specific voltage values output by the P-gear circuit, and the vehicle control unit can judge which faults occur to the P-gear circuit according to the collected specific voltage values, so that the safety target of the ASIL C function of the P-gear can be realized.

The hand-held gear type electronic gear shifter provided by the embodiment of the invention has the advantages of extremely low cost and simple and reliable structure. According to the gear shifting system provided by the invention, the cost of electrical elements of the hand-held type electronic gear shifter can be reduced, the software development cost and the function safety development cost of the hand-held type electronic gear shifter can be directly saved, especially the ASIL B function safety target can be realized in the R/N/D gear, and the ASIL C function safety target can be realized in the P gear.

Claims (8)

1. A cup-type electronic shifter, comprising: the device comprises a shell assembly, a bosom gear operating assembly, a P gear key assembly and a main PCB (8); the part of the bosom block operation assembly penetrates through an opening arranged at one side of the shell assembly and extends into the shell assembly, and the main PCB (8) is arranged inside the shell assembly and is positioned below the part of the bosom block operation assembly extending into the shell assembly;

the P gear key assembly is arranged on the pregnant gear operation assembly and sends a plurality of groups of P gear request signals to the finished vehicle controller when being triggered;

wherein, main binary channels grating sensor (17) and redundant binary channels grating sensor (18) have been arranged on main PCB board (8), the hand-held fender manipulation subassembly is through the cutting when shifting gears the operation infrared ray between the projecting pole and the receiving pole of binary channels grating sensor and the infrared ray between the projecting pole and the receiving pole of redundant binary channels grating sensor (18), make dual output channel of binary channels grating sensor successively to vehicle control unit output represent the driver shift will's level change signal and make dual output channel of redundant binary channels grating sensor (18) successively to vehicle control unit output represent the driver shift will's level change signal.

2. The pocket stop electronic shifter according to claim 1, wherein the pocket stop operating assembly comprises:

a rail body (2) disposed within the housing assembly on the other side away from the opening;

a bosom-retaining handle (5), one end of which passes through an opening arranged at one side of the shell component and extends into the interior of the shell component, and the bosom-retaining handle (5) is rotationally arranged around a metal pin (10) fixed in the shell component;

a stop pin (3) slidably fitted at one end of the pocket handle (5) facing the rail body (2);

a light shielding plate (6) fixedly assembled on the bosom handle (5) and arranged facing the dual-channel grating sensor;

when hand-held fender handle (5) shift gears the operation, hand-held fender handle (5) center on metal round pin (10) rotate, drive keep off position round pin (3) along track body (2) slide, and drive light screen (6) cutting infrared ray between the projecting pole and the receiving electrode of main binary channels grating sensor (17) and infrared ray between the projecting pole and the receiving electrode of redundant binary channels grating sensor (18).

3. Pocket stop electronic shifter according to claim 2 characterized in that the shift pin (3) slides in its axial direction by a spring (4) arranged in the end of the pocket stop lever (5) facing the rail body (2); when the gear pin (3) slides along the track body (2) along with the hand-held gear handle (5), the gear pin (3) is stressed by the acting force of the track body (2) to extend into the hand-held gear handle (5) and compress the spring (4), and when the hand-held gear handle (5) is not subjected to gear shifting operation any more, the gear pin (3) is reset due to the resilience force of the spring (4);

and one side of the track body (2) facing the gear pin (3) is provided with a plurality of V-shaped gear grooves which are in one-to-one correspondence with the control stroke of the gear shifter.

4. A pocket stop electronic shifter according to claim 3 wherein said housing assembly comprises:

an upper shell (1), a middle shell (7) and a lower shell (9) which are arranged and fixed in sequence;

the upper shell (1) and the middle shell (7) are jointly surrounded to form an opening and an inner space for the bosom handle (5) to be inserted into, the track body (2) is fixed on the middle shell (7), and the metal pin (10) is fixed between the upper shell (1) and the lower shell (9);

the main PCB (8) is arranged between the middle shell (7) and the lower shell (9) and is pressed and fixed on the middle shell (7) through the lower shell (9).

5. The pocket-sized electronic shifter according to claim 1, wherein the P-range key assembly comprises:

a handle core (14) partially extending into the handle retainer;

an FPC board (11) for connection with a vehicle control unit, which is arranged inside the handle core (14);

a conductive rubber (12) disposed inside the handle core (14);

a bezel (15) arranged between the handle core (14) and the pocket stop handle (5);

the P-gear key (13) partially extends into the handle core (14), and when the P-gear key (13) is pressed, the conductive rubber (12) is triggered to conduct the FPC board (11), so that the FPC board (11) sends a plurality of groups of P-gear request signals to the whole vehicle controller; the P-gear key (13) returns under the action of resilience of the conductive rubber (12) when being released.

6. Pocket-sized electronic shifter according to claim 1,

when the hand-held gear handle (5) is switched from a current gear to a first-order gear, the double output channels of the main double-channel grating sensor (17) and the double output channels of the redundant double-channel grating sensor (18) respectively output level change signals containing low level, high level and low level to the whole vehicle controller in sequence, and a first output channel in the double output channels sends the level change signals before a second output channel;

when the hand-held gear handle (5) is switched from a current gear to a second-order gear, the dual-output channels of the main dual-channel grating sensor (17) and the redundant dual-channel grating sensor (18) respectively output level change signals containing low level, high level, low level, high level and low level to the whole vehicle controller in sequence, and a first output channel in the dual-output channels sends the level change signals before a second output channel;

when the hand-held gear handle (5) is switched from a current gear to a next-stage gear, the double output channels of the main double-channel grating sensor (17) and the double output channels of the redundant double-channel grating sensor (18) respectively output level change signals containing low level, high level and low level to the whole vehicle controller in sequence, and a second output channel in the double output channels sends the level change signals before the first output channel;

when hand is kept off position handle (5) and is shifted to down the second order from the current fender position, the dual output channel of main binary channels grating sensor (17) with the dual output channel of redundancy binary channels grating sensor (18) exports the level change signal that includes low level, high level, low level, high level and low level to vehicle control unit respectively in proper order, and the second output channel in the dual output channel sends the level change signal earlier than first output channel.

7. A bosch-type electronic shifter according to claim 6, wherein the inner wall of the handle core (14) is arranged with a guide groove, the outer wall of the P-range key (13) is arranged with a guide rib fitted into the guide groove;

the handle core (14) is internally provided with a lug boss and a protrusion which limit the moving stroke of the P-gear key (13) in the handle core (14).

8. A gear shifting system comprising the pocket type electronic shifter of any one of claims 1 to 7, further comprising: vehicle control unit, vehicle control unit with FPC board (11) among the button subassembly is kept off to P are connected, are used for acquireing multiunit P that FPC board (11) sent keeps off the solicited signal, vehicle control unit still with main PCB board (8) are connected, are used for based on the level change signal that the dual output channel of main binary channels grating sensor (17) on main PCB board (8) was sent successively with the level change signal that the dual output channel of redundancy binary channels grating sensor (18) on main PCB board (8) was sent successively, confirm the driver's will of shifting.

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