Vehicle, vehicle rotating hub test control method and vehicle rotating hub test control device
A technology for testing control and vehicles, which is applied to control devices, vehicle components, transportation and packaging, etc. It can solve the problems of automatic transmissions such as inability to switch gears, failure to complete hub tests, and failure to shift gears.
Active Publication Date: 2020-07-07
HENAN SENYUAN HEAVY IND
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Problems solved by technology
[0003] The purpose of the present invention is to provide a vehicle and a vehicle hub test control method and device, which are used for the problem that the automatic gearbox cannot switch gears during the hub test process of the vehicle, resulting in the failure of gear shifting and the inability to complete the hub test
Method used
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[0034] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0035] Device example:
[0036] The invention provides a vehicle hub test control device, which includes a processor, an automatic gearbox, a memory and a program stored in the memory and running on the processor, and the automatic gearbox corresponds to figure 1 In the second-speed gearbox, the processor corresponds to figure 1 The second-speed transmission controller (Transmission Control Unit, TCU) and the vehicle controller (Vehicle Control Unit, VCU) in the second-speed transmission are connected to the second-speed transmission controller, and the second-speed transmission controller is connected to the CAN bus. The vehicle controller is also connected to the bus, and the vehicle controller collects and connects the gear shifter, accelerator pedal and brake pedal. The CAN bus is connected to the vehicle instrument, which is used to display ...
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The invention provides a vehicle, a vehicle rotating hub test control method and a vehicle rotating hub test control device. A wheel rotating speed signal, a brake pedal opening degree signal, an accelerator pedal opening degree signal and an effective gear signal of the vehicle are collected; when the wheel rotating speed signal is zero and the brake pedal opening degree and the accelerator pedalopening degree are both zero, the vehicle is controlled to perform at least one gear switching control according to the effective gear signal; and when the last gear control is to control the vehicleto enter a forward gear state, an automatic gearbox is controlled to be directly converted into the second gear, thereby solving the problem that the automatic gearbox cannot conduct gear switching in the rotating hub testing process of the vehicle, directly converting the gear into the second gear, achieving the vehicle speed required by the vehicle on the rotating hub, avoiding vehicle gear shifting failure, and enabling the vehicle to normally complete rotating hub testing.
Description
technical field [0001] The invention belongs to the technical field of vehicle gear control, and in particular relates to a vehicle and a vehicle hub test control method and device. Background technique [0002] When testing a vehicle with a swivel hub, the resistance provided by the swivel hub is different from the resistance provided by the road surface. At present, all vehicles with automatic transmissions, such as electric vehicles, basically cannot achieve automatic gear shifting on the swivel hub. The automatic transmission needs to match the output speed and torque of the motor with the output speed and torque of the automatic transmission when shifting gears. On the hub, because the electric vehicle needs to cut off the power during the gear shifting process, the electric vehicle will The speed of the rear axle changes too fast, which makes it impossible to meet the conditions for gear switching. The automatic transmission judges that the gear shift has failed, and t...
Claims
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Login to View More IPC IPC(8): B60W10/11B60W40/105B60W40/00
CPCB60W10/11B60W40/105B60W40/00B60W2510/1005B60W2520/28B60W2540/10B60W2540/12B60W2710/1005
Inventor 刘忠政胡学军常乐赵心刘亚闯陈礼勇汪世伟刘向阳董龙飞李美霞
Owner HENAN SENYUAN HEAVY IND