Unlock instant, AI-driven research and patent intelligence for your innovation.
Vehicle control method and unit, vehicle control system and vehicle
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A vehicle control and vehicle technology, applied in the vehicle field, can solve problems such as poor driving experience and power output delay, and achieve the effect of ensuring driving quality
Pending Publication Date: 2022-01-28
HYCET TRANSMISSION TECH HEBEI CO LTD
View PDF14 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, in practical applications, this method still cannot avoid the generation of shocks. At the same time, due to the excessive limitation of the engine torque gradient, the driver will feel that the power output is delayed, resulting in poor driving experience.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] This embodiment relates to a vehicle control method, the vehicle is equipped with an automatic transmission, the automatic transmission may be a dual-clutch automatic transmission (DCT), or an automatic manual transmission (AT), and the figure 1 and combine figure 2 As shown, on the whole, the vehicle control method of this embodiment includes the following steps:
[0037] Step s1, obtaining the engine speed signal, the clutch speed signal of the automatic transmission, the gear position signal and the accelerator pedal signal;
[0038] Step s2. When the gear signal is a preset gear, the engine speed signal is lower than the clutch speed signal, the speed difference between the two is greater than the preset speed difference, and the accelerator pedal signal is an acceleration signal, the clutch torque of the automatic transmission is Decrease to the preset torque value;
[0039] Step s3, keeping the clutch torque of the automatic transmission at a preset torque valu...
Embodiment 2
[0055] This embodiment relates to a vehicle control unit 10 equipped with an automatic transmission, and the vehicle control unit 10 includes a processor 101 and a memory 102 .
[0056] Wherein, the memory 102 stores computer-readable codes, and when the processor 101 executes the computer-readable codes, the vehicle control unit 10 executes the vehicle control method in the first embodiment.
[0057] Moreover, in this embodiment, it is worth noting that the vehicle transmission control unit 10 can be set independently, but as a preferred implementation form, the vehicle transmission control unit 10 can use the TCU in the vehicle.
Embodiment 3
[0059] This embodiment relates to a vehicle control system, the vehicle is equipped with an automatic transmission, and the vehicle control system includes the vehicle control unit 10 in the second embodiment, and also includes a collection unit 20 .
[0060] Wherein, the acquisition unit 20 is used to acquire the engine speed signal, the clutch speed signal of the automatic transmission, the gear position signal and the accelerator pedal signal. Moreover, referring to the description in Embodiment 1, the acquisition unit 20 may specifically adopt sensing components provided on the vehicle such as an engine speed sensor, a clutch speed sensor, a gear position sensor, and an accelerator pedal position sensor.
[0061] At this time, the vehicle control unit 10 of the present embodiment is in the preset gear when the gear signal is the preset gear, the engine speed signal is lower than the clutch speed signal, the speed difference between the two is greater than the preset speed d...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention provides a vehicle control method and unit, a vehicle controlsystem and a vehicle. The vehicle carries an automatic transmission. The vehicle control method comprises the steps of obtaining an engine rotating speed signal, a clutch rotating speed signal of the automatic transmission, a gear signal and an accelerator pedal signal; when the gear signal is a preset gear, the engine rotating speed signal is lower than a clutch rotating speed signal, the rotating speed difference between the gear signal and the engine rotating speed signal is greater than a preset rotating speed difference value, and the accelerator pedal signal is an acceleration signal, reducing the clutch torque of the automatic transmission to a preset torque value; and keeping the clutch torque of the automatic transmission to be the preset torque value till the engine rotating speed signal is larger than the clutch rotating speed signal. According to the vehicle control method, the impact problem caused by too large clutch torque at the axle penetrating moment can be avoided, and the driving quality of the vehicle can be guaranteed.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle control method capable of avoiding impact when passing through axles. The invention also relates to a vehicle control unit, a vehicle control system with the vehicle control unit, and a vehicle with the above-mentioned vehicle control system. Background technique [0002] Currently, when a vehicle equipped with an automatic transmission slides in a low gear, the engine speed is lower than the clutch speed. When the engine speed is seriously lower than the clutch speed (the speed difference is greater than 50rpm), step on the accelerator to accelerate, and the clutch torque will follow the engine torque. rise and increase. When the engine speed crosses the clutch speed (abbreviated as "piercing the shaft"), severe shocks often occur due to excessive clutch torque. [0003] In the prior art, the engine torque filter is usually used, or the TCU (Transmission Control Uni...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More