Method for avoiding activation of a navigation function, transmission system and vehicle comprising a transmission system

Abstract

A method and a transmission system for avoiding activation of a cruise function in a vehicle, wherein the vehicle comprises a powertrain having the transmission system. The transmission system is configured for automatic gear shifting in an automatic operation mode and for manual gear shifting by a user of the vehicle in a manual operation mode. The transmission system comprises a user input device configured for manual change of the operation mode of the transmission system between the automatic and the manual mode. The transmission system comprises a transmission control unit for determining a recommended gear in the automatic and the manual mode. The transmission system is operated in the manual mode and the operating gear of the transmission system is detected by the transmission control unit. A change of the operation mode of the transmission system from the manual mode to the automatic mode by the user input device is detected, wherein the cruise function in the automatic mode is deactivated if the operating gear detected in the manual mode is lower than the recommended gear when the operation mode is changed to the automatic mode by the user input device.

Description

Technical Field

[0001] This disclosure relates to a method for preventing activation of a navigation function in a vehicle, wherein the vehicle includes a powertrain with a transmission system. The transmission system is configured for automatic gear shifting in an automatic operating mode and manual gear shifting by a vehicle user in a manual operating mode. The transmission system includes a user input device configured to manually change the operating mode of the transmission system between automatic and manual modes. The transmission system includes a transmission control unit for determining recommended gears in automatic and manual modes. This disclosure also relates to a vehicle transmission system for preventing activation of a navigation function, and a vehicle including a transmission system for preventing activation of a navigation function. Background Technology

[0002] Many new vehicles with automatic transmissions have a so-called cruise or eco-coasting function when the vehicle is in automatic transmission mode. This function allows the combustion engine to disconnect from the drive wheels while the vehicle is in cruise mode. Cruise mode is activated during deceleration to allow for greater travel distance and reduced overall fuel consumption without accelerator pedal input, and because no engine braking occurs in cruise mode, the deceleration rate is reduced. For many vehicles, this feature automatically activates when the accelerator pedal is released and the speed is above a certain threshold level without braking. This feature is appropriate when a reduced deceleration rate is needed. However, when the driver of the vehicle believes a higher deceleration rate is needed, applying the brake pedal will disengage the cruise function, and the engine will reconnect to the drive wheels, thus entering a deceleration fuel cut-off mode during engine braking. Having to apply the brakes to restore engine braking is inherently inefficient, as the driver needs to apply the brake pedal to restore engine braking when a faster deceleration is desired, resulting in unnecessary energy consumption in the vehicle's braking system. An alternative proposed in most vehicles that eliminates the need to apply the brake pedal to cancel cruise mode is to move the transmission shift lever to manual shift mode. This method is only useful at higher speeds, such as on highways, where the highest gear is always available and preferred by the vehicle system. Applying this manual method at lower speeds requires constant driver input because the necessary downshifts for deceleration are not typically performed automatically when the transmission is in manual mode. Therefore, if the cruise control is not working as expected, the driver must manually upshift and downshift. Another drawback of manual shifting is that sliding the shift lever back to automatic mode to avoid having to manually downshift during deceleration will reactivate the cruise control, resulting in unnecessary energy consumption in the braking system when applying the brake pedal to assist engine braking.

[0003] Therefore, an improved method is needed to avoid activating the navigation function in order to enable simple and efficient operation for vehicle users. Summary of the Invention

[0004] The purpose of this disclosure is to provide a method for avoiding activation of navigation functions in a vehicle, a vehicle transmission system for avoiding activation of navigation functions, and a vehicle including a transmission system for avoiding activation of navigation functions, thereby avoiding the aforementioned problems. This objective is achieved at least in part by the features of the independent claims. The dependent claims contain further improvements to the method for avoiding activation of navigation functions in a vehicle and the transmission system for avoiding activation of navigation functions.

[0005] This disclosure relates to a method for preventing activation of a navigation function in a vehicle, wherein the vehicle includes a powertrain with a transmission system. The transmission system is configured for automatic gear shifting in an automatic operating mode and manual gear shifting by a vehicle user in a manual operating mode. The transmission system includes a user input device configured to manually change the operating mode of the transmission system between automatic and manual modes. The transmission system includes a transmission control unit for determining a recommended gear in automatic and manual modes. The method includes the steps of: operating the transmission system in manual mode and detecting the operating gear of the transmission system via the transmission control unit in manual mode; detecting a change in the operating mode of the transmission system from manual mode to automatic mode via the user input device, wherein if the operating gear detected in manual mode is lower than the recommended gear when the operating mode is changed to automatic mode via the user input device, the navigation function in automatic mode is deactivated.

[0006] The advantage of these features is that, by changing the transmission mode, the vehicle's cruise control can be avoided in automatic mode in a highly efficient and reliable manner. Disabling the cruise control allows for controlled deceleration of the vehicle. Therefore, using this method, there is no need to apply brakes that result in unnecessary energy consumption, or to drive in manual mode to avoid the cruise control.

[0007] According to one aspect of this disclosure, the method further includes the steps of: detecting a change in the operating mode of the transmission system via a transmission control unit; and disabling the navigation function in automatic mode via the transmission control unit when the operating mode is changed to automatic mode via a user input device. The transmission control unit detects the vehicle's operating mode and receives a signal indicating a mode change when the operating mode changes. When the operating mode is changed to automatic mode, and when the condition that the manual mode gear is lower than the recommended gear when the operating mode is changed to automatic mode is met, the transmission control unit is programmed to avoid activating the navigation function, thereby achieving efficient and reliable operation.

[0008] According to another aspect of this disclosure, the user input device includes a gear shifting device. The method further includes the step of performing a downshift operation in manual mode via the gear shifting device to select an operating gear lower than the recommended gear. The gear shifting device may be, for example, a conventional gear lever or paddle shifters arranged to connect to the vehicle's steering wheel, wherein the gear shifting device is operated by the vehicle user. Through the downshift operation, the recommended gear will be higher than the operating gear, and the condition that the operating gear in manual mode is lower than the recommended gear is achieved in a simple, reliable, and efficient manner when the operating mode is changed to automatic mode via the user input device. The recommended gear can be indicated to the user, for example, via a suitable interface (e.g., a graphical indicator connected to the speedometer).

[0009] According to one aspect of this disclosure, the method further includes the step of activating the engine braking function of the transmission system by downshifting in manual mode. When a downshifting operation begins, the engine braking function is activated to efficiently decelerate the vehicle.

[0010] According to another aspect of this disclosure, the method further includes the step of initiating an acceleration operation in manual mode to select an operating gear lower than the recommended gear. The acceleration operation can be initiated, for example, by the vehicle user pressing the accelerator pedal or by issuing an acceleration command via the cruise control system without changing the gear. During acceleration, the recommended gear will eventually be higher than the operating gear. The recommended gear can be indicated to the user, for example, via a suitable interface (e.g., a graphical indicator connected to the speedometer). By downshifting or accelerating, the condition that the operating gear in manual mode is lower than the recommended gear when the operating mode is changed to automatic mode via a user input device is achieved in a simple, reliable, and efficient manner. However, it should be understood that if the vehicle is already traveling in the highest gear, this acceleration operation will not have any effect.

[0011] According to another aspect of this disclosure, the method further includes the step of activating the engine braking function of the transmission system by aborting acceleration in manual mode. When acceleration begins and is subsequently aborted, the engine braking function is activated to achieve efficient vehicle deceleration (high-efficiency deceleration).

[0012] According to one aspect of this disclosure, the method further includes the step of maintaining the engine braking function of the transmission system in automatic mode when the operating mode is changed from manual mode to automatic mode via a user input device. By maintaining the engine braking function, efficient deceleration of the vehicle in automatic mode is ensured.

[0013] According to another aspect of this disclosure, the method further includes the step of selecting a recommended gear in automatic mode while maintaining engine braking function of the transmission system. In this way, engine braking function is maintained in automatic mode to efficiently decelerate the vehicle, even while allowing the transmission to shift gears to the recommended gear.

[0014] According to another aspect of this disclosure, the method further includes the following steps: operating the transmission system in automatic mode before operating it in manual mode; changing the operating mode from automatic to manual mode via a user input device, wherein in manual mode, the transmission control unit selects a recommended gear. Therefore, the transmission can be operated first in automatic mode, then switched to manual mode, and then switched back to automatic mode to avoid activating the navigation function. In manual mode, to avoid activating the navigation function, the following condition must be met: when changing the operating mode back to automatic mode, the gear in manual mode is lower than the recommended gear.

[0015] According to one aspect of this disclosure, the method further includes the step of determining a recommended gear based on vehicle driving conditions by a transmission control unit. Vehicle driving conditions can vary depending on various parameters, such as vehicle speed, road type, road incline, and weather conditions. These parameters, along with other parameters, affect the torque required from the engine to propel the vehicle, and therefore also affect the recommended gear. The vehicle control unit collects relevant information from the powertrain to determine an appropriate recommended gear based on the vehicle driving conditions.

[0016] According to another aspect of this disclosure, the method further includes the step of activating the navigation function in automatic mode when a user command is initiated to the vehicle's transmission control unit. If driving with the navigation function disabled, the vehicle user can decide to activate it. This can be achieved by issuing a user command to the transmission control unit via an appropriate user interface such as an activation button or switch. In this way, efficient activation of the navigation function is achieved.

[0017] According to another aspect of this disclosure, the user input device is arranged as a gear shift lever, which the user can move between an automatic mode position for operating the transmission system in automatic mode and a manual mode position for operating the transmission system in manual mode. The method includes the following steps: changing the operating mode of the transmission system from manual mode to automatic mode by moving the gear shift lever from the manual mode position to the automatic mode position, wherein if the operating gear detected in manual mode is lower than the recommended gear when the gear shift lever is moved from the manual mode position to the automatic mode position, the navigation function in automatic mode is deactivated. Using a gear shift lever as a user input device is a simple and reliable solution, and it is also easy for the vehicle user to operate efficiently. Therefore, the navigation function can be easily deactivated in automatic mode via the gear shift lever.

[0018] This disclosure also relates to a vehicle transmission system for avoiding activation of the cruise control function. The transmission system is configured for automatic gear shifting in automatic mode and manual gear shifting by the vehicle user in manual mode. The transmission system includes a user input device configured to manually change the operating mode of the transmission system between automatic and manual modes. The transmission system includes a transmission control unit configured to determine recommended gears in automatic and manual modes. When the transmission system is operating in manual mode, the transmission control unit is configured to detect the operating gear of the transmission system. The transmission control unit is configured to, if the operating gear detected in manual mode is lower than the recommended gear when changing the operating mode from manual to automatic via the user input device, then disable the cruise control function in automatic mode when changing the operating mode from manual to automatic via the user input device. The advantage of these features is that, by changing the transmission mode, the cruise control function of the vehicle can be avoided in automatic mode in an efficient and reliable manner. Disabling the cruise control function allows for controlled deceleration of the vehicle. Therefore, using the described transmission system, it is not necessary to apply braking that results in unnecessary energy consumption or to drive in manual mode to avoid the cruise control function.

[0019] According to one aspect of this disclosure, the user input device includes a shifting device. The transmission control unit is configured in manual mode to operate the transmission system at a lower gear than the recommended gear when downshifting using the shifting device or when initiating acceleration. The shifting device may be, for example, a conventional gear lever or paddle shifters arranged to be attached to the vehicle's steering wheel and operated by the vehicle user. Acceleration can be initiated, for example, by the user pressing the accelerator pedal or by initiating an acceleration command via the cruise control system without changing the gear. In this case, the recommended gear will be higher than the operating gear. The recommended gear can be indicated to the user, for example, via a suitable interface (e.g., a graphical indicator attached to the speedometer). Downshifting or acceleration operations achieve, in a simple, reliable, and efficient manner, the operating gear in manual mode being lower than the recommended gear when the operating mode is changed to automatic mode via the user input device.

[0020] According to another aspect of this disclosure, the transmission control unit is configured to activate the engine braking function of the transmission system via downshifting in manual mode or by stopping acceleration in manual mode. When switching to automatic mode, the activation of the engine braking function results in efficient deceleration of the vehicle.

[0021] According to another aspect of this disclosure, the user input device is arranged as a gear shift lever, which can be moved by the user between an automatic mode position for operating the transmission system in automatic mode and a manual mode position for operating the transmission system in manual mode. Using the gear shift lever as a user input device is a simple and reliable solution, and it is also easy for vehicle users to operate efficiently. The navigation function can be easily deactivated via the gear shift lever in automatic mode.

[0022] This disclosure also relates to a vehicle that includes the aforementioned transmission system for avoiding activation of navigation functions. Attached Figure Description

[0023] The present disclosure will now be described in detail with reference to the accompanying drawings, in which...

[0024] Figure 1 The layout of a vehicle is schematically shown, the vehicle having a powertrain including a transmission system according to the present disclosure.

[0025] Figures 2a-2b An embodiment of the user input device for a transmission system in automatic and manual modes according to this disclosure is illustrated schematically.

[0026] Figure 3 Alternative embodiments of the user input device for the drive system according to this disclosure are illustrated schematically.

[0027] Figure 4 A flowchart illustrating exemplary method steps for operating a transmission system according to this disclosure is shown schematically. Detailed Implementation

[0028] Various aspects of this disclosure will now be described in conjunction with the accompanying drawings, in order to illustrate and not limit the disclosure, wherein similar reference numerals denote similar elements, and variations of the described aspects are not limited to the embodiments specifically shown, but are other variations that can be applied to the disclosure.

[0029] Those skilled in the art will understand that the steps, services, and functions explained herein can be implemented using separate hardware circuitry, software that functions in conjunction with a programmable microprocessor or general-purpose computer, one or more application-specific integrated circuits (ASICs), and / or one or more digital signal processors (DSPs). It will also be understood that, when described as a method, this disclosure can also be implemented in one or more processors and one or more memories coupled to said one or more processors, wherein said one or more memories store one or more programs that perform the steps, services, and functions disclosed herein when executed by said one or more processors.

[0030] This disclosure relates to a transmission system and method for avoiding activation of a cruise control function in a vehicle. As will be further described below, the described method can be implemented by a computer, for example, after input of one or more commands by a vehicle user. The transmission system is part of the vehicle's powertrain. When the vehicle is operating in automatic transmission mode, the transmission system is configured to have a cruise control function, also known as an energy-saving coasting function. This cruise control function allows the combustion engine to be disconnected from the drive wheels in the vehicle's cruise mode. The cruise mode is activated during deceleration to allow for greater travel distance and reduced overall fuel consumption without accelerator pedal input, and the deceleration rate is reduced because no engine braking occurs in cruise mode. Sometimes, vehicle users wish to operate the vehicle without activating the cruise control function.

[0031] Figure 1 A vehicle V having a powertrain 1 and a transmission system 2 is schematically shown. The transmission system 2 is configured for use in automatic operation mode M. A Automatic shifting and manual operation mode (M) M The user of vehicle V will manually shift gears. The transmission system 2 can have any suitable configuration and may be available in automatic mode M. A and manual mode M M The transmission system 2 includes a user input device 3, which is configured to switch between automatic and manual modes. A and manual mode M MThe operating mode of the transmission system 2 can be manually changed. The transmission system 2 also includes a transmission control unit 4, which is used to determine the automatic mode M. A and manual mode M M Recommended G gear R Recommended gear: G R The gear is determined by the transmission control unit 4 based on the vehicle's driving conditions. Recommended gear: G. R This is a gear position suitable for specific driving conditions of vehicle V, and can change according to factors such as vehicle speed, road type, road incline, and weather conditions. In a head-up display or other display unit, it is suitable to indicate the recommended gear G to the vehicle user using, for example, graphic display means such as arrows, symbols, and / or graphics. R Based on the recommended gear R G Users can use manual mode M M Perform manual gear shifting. In automatic mode (M)... A In the middle, the transmission control unit 4 ensures the shifting operation for use in the recommended gear G. R Drive vehicle V.

[0032] User input device 3 is configured for use in automatic mode M A and manual mode M M The operating mode of the transmission system 2 can be manually changed. The user input device 3 can have any suitable construction, such as a switch, button, shift lever, or other suitable device.

[0033] exist Figures 2a-2b An exemplary embodiment of the user input device 3 is schematically shown, wherein the user input device 3 includes a shifting device 3a. Figure 2a In -b mode, the user input device 3 is arranged as a dual-function shift lever 5. The shift lever 5 can be used in automatic mode M. A and manual mode M M Changing the operating mode between, and for use in manual mode M M The shift lever 5 provides a simple and reliable solution for easy operation by the vehicle user. The shift lever 5 allows the user to perform gear shifting operations as follows: Figure 2a The image shown is for use in automatic mode M A Automatic mode position P of the operating transmission system 2 A He Ru Figure 2b The image shown is for use in manual mode M M Manual mode position P of the transmission system 2 M Move between positions. In manual mode, position P M In the middle, the gear shift lever 5 has the function of the gear shifting device 3a. In the manual position P MIn this configuration, the shift lever 5 can be moved to perform a gear shifting operation. In the illustrated embodiment, as indicated by the double arrows, the shift lever 5 is in the automatic mode position P. A and manual mode position P M Lateral movement between them, in automatic mode M A and manual mode M M Change between positions. In manual mode, position P M In this configuration, the shift lever 5 can be pushed up or down from its initial shift lever position. The shift lever 5 is appropriately spring-suspended so that it returns to its initial shift lever position after being moved up or down for shifting. In the illustrated embodiment, as indicated by the plus sign, when the shift lever 5 is pushed up, in manual mode M... M The upshift operation of transmission system 2 is executed. U And as indicated by the minus sign, when shift lever 5 is pushed down, a downshift operation is performed. D In automatic mode, position P A In the center, the gear shift lever 5 can move between different gear modes, such as parking mode, forward mode, neutral mode, and reverse mode, as shown below. Figures 2a-2b The letters P, R, N, and D are indicated in the diagram. The shift lever 5 is appropriately arranged such that, after initially shifting from Park mode P, Neutral mode N, or Reverse mode R to Forward mode D, it remains in Automatic mode position P. A and manual mode position P M Displacement between them.

[0034] exist Figure 3 The image schematically illustrates an alternative exemplary embodiment of the user input device 3, wherein the user input device 3 includes a gear shifting device 3a. Figure 3 In the vehicle, the user input device 3 is arranged as a mode selection device 6a and a shift paddle 6b, wherein the shift paddle 6b is suitably arranged to be connected to the steering wheel 7 of the vehicle V. The mode selection device 6a can be configured as a button, for example, and is used to select automatic mode M. A and manual mode M M Change operating mode between these modes. Shift paddle 6b is used in manual mode (M). M The gear shifting operation is performed below. When the vehicle user, for example, actuates the mode selection device 6a by manually pushing it, the mode selection device 6a can be configured, for example, for mode switching operations. Whenever the user actuates the mode selection device 6a, the transmission mode is in automatic mode M. A and manual mode M M The shifting alternates between these modes. Depending on the structure of transmission system 2, switches other than buttons can also be used. Shift paddle 6b is used when in manual mode M. M Shift gears while driving downhill. The vehicle can be configured to have a steering wheel attachment for downshifting. DThe left-hand shift paddle 6b (indicated by a minus sign), and the O attached to the steering wheel for upshifting. U The right-hand shift paddle 6b (indicated by a plus sign) is also present. Each shift paddle 6b can be displaced to perform a shifting operation. Each shift paddle 6b is suitably spring-suspended to return to its initial shift paddle position after, for example, a pulling motion toward the user for shifting. In the illustrated embodiment, when the user pulls the right shift paddle 6b, in manual mode M... M Execute upshift operation O U And when the left shift paddle 6b is pulled, a downshift operation is performed. D Furthermore, in this embodiment, the transmission system 2 may include a gear selector 8, which is configured as, for example, a torsion actuator or other suitable selector device. The gear selector 8 can shift between different gear modes, such as parking mode, forward mode, neutral mode, and reverse mode, as... Figure 3 The letters P, R, N, and D are indicated in the diagram. After the gear selector 8 has made an initial displacement from parking mode P, neutral mode N, or reverse mode R, the gear selector 8 is suitably positioned in forward mode D, after which the mode selection device 6a can be operated for use in automatic mode M. A and manual mode M M Change the operating mode between them.

[0035] When the transmission system 2 is in manual mode M M During operation, the transmission control unit 4 is configured to detect the operating gear G of the transmission system 2. O Operating gear G O The gear is manually selected by the user of vehicle V via gear shifting device 3a. Therefore, the operating gear is G. O It can be different from the recommended gear G. R The gear selection is based on the vehicle's driving conditions, allowing the user to choose a gear higher or lower than the recommended G. R The gear position. A user's sporty driving style can, for example, result in a gear lower than the recommended G. R The gear selection is for use in manual mode M. M Rapid acceleration and efficient engine braking operation.

[0036] The transmission control unit 4 of the transmission system 2 is configured to determine the automatic mode M. A and manual mode M M Recommended G gear R In transmission system 2, in manual mode M M During operation, the transmission control unit 4 is configured to detect the operating gear G of the transmission system 2. OThe transmission control unit 4 is configured to, if the operating mode is changed from manual mode M via the user input device 3, M Change to automatic mode M A In manual mode M M The detected operating gear G O Below the recommended G R Then, by using the user input device 3 to change the operation mode from manual mode M... M Change to automatic mode M A When automatic mode M is disabled. A Navigation function F below S .

[0037] To avoid activating navigation function F S In manual mode M M The transmission system 2 is operated. Therefore, the vehicle user has selected manual mode M via user input device 3, as described, for example, in the different embodiments above. M In manual mode M M The operating gear G of the transmission system 2 is detected by the transmission control unit 4. O The transmission control unit 4 also calculates and recommends gear G. R When the user of vehicle V changes the operating mode of transmission system 2 from manual mode M via user input device 3... M Change to automatic mode M A When this change in operating mode occurs, it will be detected by the transmission control unit 4. In this case, since it is in manual mode M... M The transmission system is operated, and the transmission control unit 4 detects the change from manual mode M. M Switch to automatic mode M A The change. However, the transmission control system 4 is also configured to detect the change from automatic mode M. A Switch to manual mode M M The change. When the operation mode of the transmission system 2 is changed from manual mode M via the user input device 3. M Switch to automatic mode M A The change was detected by the transmission control unit 4, and the operating mode was changed to automatic mode M. A Manual mode M M down to the operating gear G O It is also detected by the transmission control unit 4. If the operating mode is changed to automatic mode M via the user input device 3... A In manual mode M M The detected operating gear G O Below the recommended G R Then disable automatic mode M. A Navigation function F below STherefore, the transmission control unit 4 detects changes in the operating mode of the transmission system 2, and when the operating mode is changed to automatic mode M via the user input device 3... A At this time, the transmission control unit 4 disables the automatic mode M. A Navigation function F below S .

[0038] exist Figures 2a-2b In the illustrated embodiment, the transmission system 2 is configured to move the shift lever 5 from the manual mode position P M Shift to automatic mode position P A To change the operation mode from manual mode M M Change to automatic mode M A If the shift lever 5 is moved from the manual mode position P... M The position has been shifted to the automatic mode position P. A In manual mode M M The detected operating gear G O Below the recommended G R When this happens, automatic mode M will be disabled. A Navigation function F below S .

[0039] exist Figure 3 In the illustrated embodiment, the transmission system 2 is configured to switch the operating mode from manual mode M by actuating the mode selection device 6a. M Change to automatic mode M A If the mode selection device 6a is activated in manual mode M M The detected operating gear G O Below the recommended G R Then automatic mode M A Navigation function F below S It has been suspended.

[0040] Using this function of the system, the user of vehicle V can switch the operating mode of the transmission system 2 from manual mode M. M Change to automatic mode M A Ensure operation of bit G O Below the recommended G R This allows for a simple and reliable way to avoid activating automatic mode M. A Navigation function F below S To ensure that in manual mode M... M Below the recommended G gear R Operating gear G O Operating the transmission system 2, the user of vehicle V has different available options. In manual mode M... MAs an alternative, the user can perform a downshift operation via the gear shift device 3a. D To be used to select a gear lower than the recommended G. R Operating gear G O Through manual mode M M Downshifting operation O D This can activate the engine braking function F of transmission system 2. EB As an alternative, users can initiate (start) an acceleration operation. A For use in manual mode M M Select a gear lower than the recommended G. R Operating gear G O Acceleration can be initiated, for example, by the user pressing the accelerator pedal without shifting gears, or alternatively by issuing an acceleration command via the cruise control system without shifting gears. In this case, the engine braking function F of transmission system 2... EB You can switch to manual mode M M Acceleration operation O A Activation will be aborted. However, it should be understood that if the user is already in manual mode M... M If the transmission system 2 is operated at the highest available gear, then by accelerating O... A Choose a gear lower than the recommended G. R Operating gear G O It is not available. If the transmission system 2 is designed to have eight available forward gears, and when driving at high speeds, for example on a highway, manual mode M... M The lower transmission system 2 is operated in the highest eighth gear, which is the operating gear G. O If the vehicle accelerates further (V), the gear will shift to eighth gear (G). O And recommended gear G. R It will never go higher than the eighth gear.

[0041] In the above embodiment, the user input device 3 includes a shifting device 3a, and the transmission control unit 4 is in manual mode M. M The lower gear is configured for downshifting operation using the shift mechanism 3a. D G below the recommended level R Operating gear G O Operate transmission system 2, or once acceleration operation O is initiated A Then use a gear lower than the recommended G. R Operating gear G O The transmission system 2 is operated. The transmission control unit 4 is also configured for use in manual mode M. M Downshifting operation O D Or via manual mode M MAcceleration operation O A The abort is used to activate the engine braking function of transmission system 2. EB .

[0042] The transmission system 2 may also have the following configuration, in which the operating mode is changed from manual mode M via the user input device 3. M Change to automatic mode M A In automatic mode M A The engine braking function of transmission system 2 will be maintained F. EB The drivetrain can also be configured in automatic mode M. A Select the recommended gear G. R At the same time, maintain the engine braking function F of transmission system 2. EB .

[0043] If the user of vehicle V is already in automatic mode M A To drive, you can simply enter manual mode (M). M And perform the above-described deactivation process to begin deactivating navigation function F as described above. S Therefore, in manual mode M M Before operating transmission system 2, transmission system 2 is in automatic mode M. A The operation mode of the transmission system 2 is changed from automatic mode M by means of the user input device 3. A Change to manual mode M M When switching to manual mode M M At that time, the transmission control unit 4 selects the recommended gear G. R And thereafter, users can perform actions such as downshifting. D Alternatively, it can be achieved by accelerating the operation of O. A At a speed lower than the recommended G R The gear position of the vehicle is V.

[0044] In an alternative embodiment, not shown, when in automatic mode M A Under-pilot and navigation function F S When deactivated, the navigation function F can be activated when a user command is issued to the vehicle transmission control unit 4. S For example, the transmission system 2 may be equipped with a suitable user input interface for communicating with the transmission control unit 4, for example, for controlling the navigation function F via commands from a user input device. S An activation button or similar device. Therefore, the user of vehicle V can activate the navigation function F via user command by simply pushing the user input device. S .

[0045] Figure 4A flowchart is shown for an exemplary method of operating a transmission system 2 via a user input device 3. This exemplary method includes the following references. Figure 4 The steps described.

[0046] In the exemplary method, the transmission system 2 having the user input device 3 can have the above-described and Figure 1-3 The configuration shown in the figure, wherein the transmission system 2 of the vehicle V is used to avoid activating the navigation function F S Furthermore, the transmission system 2 is configured for use in automatic mode M A Automatic gear shifting and manual mode (M) are performed. M The user of vehicle V manually shifts gears. The transmission system 2 includes a user input device 3 configured as described in the different embodiments, and the user input device 3 is used in automatic mode M. A and manual mode M M The operating mode of transmission system 2 can be manually changed between these modes.

[0047] In step B, the transmission system 2 is in manual mode M. M Operation, and in manual mode M M The operating gear G is detected by the transmission control unit 4. O .

[0048] In step C, the transmission control unit 4 detects the operating mode of the transmission system 2 via the user input device 3, switching it from manual mode M. M Switch to automatic mode M A The change.

[0049] In step D, the operation mode is changed to automatic mode M via user input device 3. A At that time, the transmission control unit 4 will be in manual mode M. M The detected operating gear G O With recommended gear G R Compare them.

[0050] In step E, if in manual mode M M The detected operating gear G O Below the recommended G R Then, the automatic mode M is disabled via the transmission control unit 4. A Navigation function F below S .

[0051] In step A, the transmission system 2 is in manual mode M as described in step B. M Before operation, use the automatic mode (M). A The operation is performed, and in step A, the operation mode is changed from automatic mode M via user input device 3. AChange to manual mode M M In manual mode M M Next, the transmission control unit 4 selects the recommended gear G. R Furthermore, it allows users to manually operate the transmission system 2 thereafter.

[0052] If desired, when transmission system 2 is in manual mode M M During operation, step F can form part of step B. In step F, if in manual mode M... M Next, the user performs a downshift operation via the shift device 3a. D To be used to select a gear lower than the recommended G. R Operating gear G O Then, by downshifting O D Activate engine braking function F of transmission system 2 EB Or, if in manual mode M M Below, the user initiates an acceleration operation. A To be used to select a gear lower than the recommended G. R Operating gear G O Then, by suspending the acceleration operation O A To activate the engine braking function F of transmission system 2 EB Therefore, this step is performed in manual mode M. M Activate engine braking function F EB .

[0053] When in manual mode M M When step F is completed, step G becomes part of step E. In step G, when the operation mode is changed from manual mode M via user input device 3... M Change to automatic mode M A In automatic mode M A The engine braking function of transmission system 2 will be maintained F. EB Therefore, this step maintains engine braking function F. EB By maintaining engine braking function F EB Ensure vehicle V is in automatic mode M A High-efficiency deceleration in the process.

[0054] Step H can form part of step G. In step H, the engine braking function F of the transmission system 2 is maintained. EB At the same time, the transmission control unit 4 operates in automatic mode M. A Select the recommended gear G. R In this way, in automatic mode M A Engine braking function F EB To efficiently decelerate vehicle V, even when transmission 2 is allowed to shift gear 2 to the recommended gear G.R .

[0055] The present disclosure has been presented above with reference to specific embodiments. However, other embodiments besides those described above are possible and are within the scope of this disclosure. Method steps, performed by hardware or software, different from the steps described above, may be provided within the scope of this disclosure. Therefore, according to an exemplary embodiment, a non-transitory computer-readable storage medium is provided storing one or more programs configured for execution by one or more processors of a transmission system 2 having a transmission control unit 4, the one or more programs including instructions for performing the method according to any of the above embodiments. Alternatively, according to another exemplary embodiment, a cloud computing system may be configured to perform any aspect of the method presented herein. The cloud computing system may include distributed cloud computing resources that collectively perform the presented method aspects under the control of one or more computer program products. Furthermore, the processor may be connected to one or more communication interfaces and / or sensor interfaces for receiving and / or transmitting data with external entities, such as sensors disposed on the surface of a vehicle, an off-site server, or a cloud-based server.

[0056] One or more processors associated with the drivetrain 2 and drivetrain control unit 4 may be any number of hardware components for performing data or signal processing or for executing computer code stored in memory, or may include such hardware components. The system may have associated memory, and the memory may be one or more means for storing data and / or computer code to perform or facilitate the various methods described herein. The memory may include volatile or non-volatile memory. The memory may include database components, object code components, script components, or any other type of information structure for supporting the various activities described herein. According to exemplary embodiments, any distributed or local memory device may be used with the systems and methods described herein. According to exemplary embodiments, the memory may be communicatively connected to the processor (e.g., via circuitry or any other wired, wireless, or network connection) and includes computer code for performing one or more processes described herein.

[0057] It should be understood that the above description is exemplary in nature and is not intended to limit the present disclosure or its application or use. Although specific examples have been described in the specification and illustrated in the drawings, those skilled in the art will understand that various changes can be made and equivalents can be substituted for elements therein without departing from the scope of the present disclosure as defined in the claims. Furthermore, modifications can be made to adapt particular circumstances or materials to the teachings of the present disclosure without departing from its essential scope. Therefore, the present disclosure is not intended to be limited to the specific examples disclosed as the best mode of implementation currently conceived for carrying out the teachings of the present disclosure, which are illustrated in the drawings and described in the specification. Rather, the scope of the present disclosure will include any implementation falling within the scope of the foregoing description and the appended claims. Reference numerals used in the claims should not be construed as limiting the scope of the subject matter protected by the claims; their sole purpose is to facilitate the understanding of the claims.

[0058] Figure Labels

[0059] 1: Powertrain

[0060] 2: Transmission System

[0061] 3: User input device

[0062] 3a: Gear shifting device

[0063] 4: Transmission control unit

[0064] 5: Gear shift lever

[0065] 6a: Mode selection device

[0066] 6b: Paddle shifters

[0067] 7: Steering wheel

[0068] 8: Gear selector

[0069] F EB Engine braking function

[0070] F S Navigation function

[0071] G O : Gear settings

[0072] G R Recommended gear

[0073] M A Automatic mode

[0074] M M Manual mode

[0075] OA Speed ​​up operation

[0076] O D Downshifting

[0077] O U Upshifting

[0078] P A Automatic mode location

[0079] P M Manual mode location

[0080] V: Vehicle

Claims

1. A method for avoiding activation of navigation functions (F) in a vehicle (V). S The method, in which, The vehicle (V) includes a powertrain (1) having a transmission system (2), wherein the transmission system (2) is configured for use in automatic operation mode (M). A Automatic shifting in manual mode and in manual operation mode (M) M In the automatic operation mode (M), the user of the vehicle (V) manually shifts gears, wherein the transmission system (2) includes a user input device (3) configured to be used in the automatic operation mode (M). A ) and the manual operation mode (M) M The automatic operation mode (M) can be manually changed between different operating modes, wherein the transmission system (2) includes a transmission control unit (4) for determining the automatic operation mode (M). A ) and the manual operation mode (M) M Recommended gear (G) R The method includes the following steps: In the manual operation mode (M) M The transmission system (2) is operated in the manual operation mode (M) and in the manual operation mode (M) M The transmission control unit (4) detects the operating gear (G) of the transmission system (2). O ); The operation mode of the transmission system (2) is detected via the user input device (3) from the manual operation mode (M). M ) to the automatic operation mode (M) A The change of the operation mode to the automatic operation mode (M) via the user input device (3) A In the manual operation mode (M) M The operating gear (G) detected under the following conditions O ) lower than the recommended level (G) R ), disable the automatic operation mode (M) A The navigation function (F) under ) S ).

2. The method according to claim 1, wherein, The method further includes the following steps: The transmission control unit (4) detects changes in the operating mode of the transmission system (2); and When the operation mode is changed to the automatic operation mode (M) via the user input device (3), A When the automatic operation mode (M) is deactivated by the transmission control unit (4), the automatic operation mode (M) is deactivated. A The navigation function (F) under ) S ).

3. The method according to claim 1 or 2, wherein, The user input device (3) includes a gear shifting device (3a), wherein the method further includes the following steps: In the manual operation mode (M) M The downshift operation is performed via the shifting device (3a) (O) D ), to be used to select a level lower than the recommended level (G) R The operating gear (G) O ).

4. The method according to claim 3, wherein, The method further includes the following steps: Through the manual operation mode (M) M The downshift operation (O) under ) D ), activating the engine braking function (F) of the transmission system (2). EB ).

5. The method according to claim 1 or 2, wherein, The method further includes the following steps: In the manual operation mode (M) M The acceleration operation will begin below (O) A ), to be used to select a level lower than the recommended level (G) R The operating gear (G) O ).

6. The method according to claim 5, wherein, The method further includes the following steps: By pausing in the manual operation mode (M) M The acceleration operation (O) under ) A ), activating the engine braking function (F) of the transmission system (2). EB ).

7. The method according to claim 4 or 6, wherein, The method further includes the following steps: When the operation mode is changed from the manual operation mode (M) via the user input device (3) M ) Change to the automatic operation mode (M) A In the automatic operation mode (M) A The engine braking function (F) of the transmission system (2) is maintained. EB ).

8. The method according to claim 7, wherein, The method further includes the following steps: In the automatic operation mode (M) A Select the recommended gear (G) below. R ), while maintaining the engine braking function (F) of the transmission system (2). EB ).

9. The method according to claim 1 or 2, wherein, The method further includes the following steps: In the manual operation mode (M) M Before operating the transmission system (2), operate in the automatic operation mode (M) A ) Operate the transmission system (2); The operation mode is changed from the automatic operation mode (M) via the user input device (3). A Change to the manual operation mode (M) M ), wherein in the manual operation mode (M M Under these conditions, the transmission control unit (4) selects the recommended gear (G). R ).

10. The method according to claim 1 or 2, wherein, The method further includes the following steps: The recommended gear (G) is determined by the transmission control unit (4) based on the driving conditions of the vehicle (V). R ).

11. The method according to claim 1 or 2, wherein, The method further includes the following steps: When a user command is initiated to the transmission control unit (4) of the vehicle, the automatic operation mode (M) is activated. A The navigation function (F) under ) S ).

12. The method according to claim 1 or 2, wherein, The user input device (3) is configured as a shift lever (5), which can be used by the user in the automatic operation mode (M). A ) Operate the automatic mode position (P) of the transmission system (2). A ) and for use in the manual operation mode (M) M ) Operate the manual mode position (P) of the transmission system (2). M The method involves shifting between () and () the following steps: By shifting the gear lever (5) from the manual mode position (P) M ) shift to the automatic mode position (P) A The operation mode of the transmission system (2) is changed from the manual operation mode (M) to the manual operation mode. M Change to the automatic operation mode (M) A ), wherein, if the shift lever (5) is in the manual mode position (P) M ) shift to the automatic mode position (P) A In the manual operation mode (M) M The operating gear (G) detected under the following conditions O ) lower than the recommended level (G) R If the automatic operation mode (M) is disabled, then the automatic operation mode (M) will be deactivated. A Navigation functions under (F) S ).

13. A method for avoiding activation of navigation functions (F S The transmission system (2) of the vehicle (V), wherein, The transmission system (2) is configured for use in automatic operation mode (M) A Automatic shifting and manual operation mode (M) M In the automatic operation mode (M), the transmission system (2) includes a user input device (3) configured to be manually shifted by the user of the vehicle (V). A ) and the manual operation mode (M) M The automatic operation mode (M) can be manually changed between different operating modes, wherein the transmission system (2) includes a transmission control unit (4) configured to determine the automatic operation mode (M). A ) and the manual operation mode (M) M Recommended gear (G) R ); Among them, the manual operation mode (M) M When operating the transmission system (2), the transmission control unit (4) is configured to detect the operating gear (G) of the transmission system (2). O ); The transmission control unit (4) is configured to, if the operation mode is changed from the manual operation mode (M) via the user input device (3), M ) Change to the automatic operation mode (M) A In the manual operation mode (M) M The operating gear (G) detected under the following conditions O ) lower than the recommended level (G) R If the user input device (3) changes the operation mode from the manual operation mode (M), then the operation mode is changed from the manual operation mode (M) to the manual operation mode. M ) Change to the automatic operation mode (M) A When the automatic operation mode (M) is deactivated, the automatic operation mode (M) is disabled. A The navigation function (F) under ) S ).

14. The transmission system (2) according to claim 13, wherein, The user input device (3) includes a gear shifting device (3a), wherein the transmission control unit (4) in the manual operation mode (M) M The gear shifter (3a) is configured to perform a downshift operation (O) using the shifting device (3a). D ) at a level lower than the recommended level (G) R The operating gear (G) O ) operate the transmission system (2), or once acceleration operation (O) begins A Then, use a level lower than the recommended level (G). R The operating gear (G) O (2) Operate the transmission system.

15. The transmission system (2) according to claim 14, wherein, The transmission control unit (4) is configured to operate in the manual mode (M) M Downshifting operation under (O) D ) or by means of the manual operation mode (M) M Accelerated operation under (O) A The termination of ) activates the engine braking function (F) of the transmission system (2). EB ).

16. The transmission system (2) according to any one of claims 13 to 15, wherein, The user input device (3) is arranged as a shift lever (5), which can be used by the user in the automatic operation mode (M). A ) Operate the automatic mode position (P) of the transmission system (2). A ) and for use in the manual operation mode (M) M ) Operate the manual mode position (P) of the transmission system (2). M ) shift between.

17. A vehicle (V) comprising, according to any one of claims 13 to 16, a method for avoiding activation of a navigation function (F). S (2) transmission system.

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