KR101093853B1 - Multi-torque and dual-power hybrid system for maximum fuel economy - Google Patents

Abstract

The present invention relates to a multi-torque and dual-power hybrid system for maximizing fuel economy of a vehicle.

Conventionally, multi-torque logic and smart power logic for the purpose of reinforcing uphill output were simultaneously applied for the purpose of reducing fuel efficiency of the vehicle, but there was a problem that the effect of improving fuel economy was insignificant, and the driving feeling was reduced during rapid start and rapid acceleration. When there is a problem such as lack of output when driving on a flat surface, the highest speed when driving at high speed,

Multi-torque for separately setting the maximum torque for each gear stage within the engine nominal torque range; Dual limiting the amount of fuel consumed for the surplus output depending on the load conditions of the vehicle by limiting the maximum (MAX) output per gear stage (TM) by operating at the fuel economy output, which is an output within the range of 70 to 90% of the nominal output in the entire engine area. According to the multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention, the engine torque and the output are selectively controlled through power; Regardless, fuel efficiency can be optimized and power driving can greatly improve the performance of the vehicle, and fuel efficiency can be significantly reduced by 2.2% or more. Will be.

Multi Torque, Smart Power, Dual Power, External Switch, Axel Pedal

Description

Multi-torque and dual power system for maximizing fuel economy of vehicles {a multi-torque and dual power system for a vehicle}

The present invention relates to a multi-torque and dual-power hybrid system for maximizing the fuel economy of a vehicle. More specifically, the multi-torque and dual-power hybrid system is used to limit the maximum (MAX) output of each transmission (TM) unit to the load condition of the vehicle. As a result, fuel consumption can be improved by limiting the amount of fuel consumed for surplus power, and the driver can freely select an output mode or a fuel efficiency mode according to the driving conditions of the vehicle or the driver's intention to satisfy the driver's desire in any driving condition. It's about making things meet.

Conventionally, smart torque logic for multi-torque logic and uphill output reinforcement has been applied for the purpose of reducing fuel efficiency of a vehicle. However, when the multi-talk and smart power are simultaneously applied, the actual fuel efficiency improvement effect is insignificant.

In other words, the application of multi-torque logic will reduce fuel consumption by approximately 1%, but the smart power application will result in a fuel economy of -2%. do.

The multi-torque logic is a logic for reducing fuel consumption by removing the fuel amount for each engine speed during engine operation. The multi-torque logic is to separately set the maximum torque for each gear (TM) gear within the engine nominal torque range. TM) Each stage recognition logic is applied to each model (High / Low Threshold setting for each gear ratio).

Smart power logic is a logic that makes the determination of the downhill driving when the engine speed is reduced per unit time in order to recover the engine output during the uphill driving, and maximizes the amount of fuel within the nominal torque. .

The multi-torque logic has the advantage of reducing fuel consumption by limiting the amount of unnecessary fuel, but the driving feeling is reduced during rapid start and rapid acceleration due to the limited fuel amount, and the output is insufficient during flat driving due to the engine speed (rpm) limitation for each stage. And, there is a disadvantage that there is a complaint about the maximum speed at high speed.

And smart power logic has the advantage that down-shifting is unnecessary when driving uphill at high gear ratio, but it causes excessive fuel consumption due to output over instantaneous nominal output, which leads to deterioration of fuel efficiency. There is this.

1 is a conceptual diagram of a conventional multitalk and smart power hybrid system, and FIG. 2 is an output graph of the conventional multitalk and smart power hybrid system.

As shown in FIG. 1 and FIG. 2, smart power for the purpose of output reinforcement during multi-torque and uphill driving for the purpose of output diversification by stage, respectively, transmission (TM) gear stage recognition, engine speed, atmospheric pressure signal, stage The star fuel map is used as an input variable, and the fuel consumption mode and the power mode are selected according to the switch signal (XQTCUT).

In the above fuel economy mode, multi-torque limits fuel / revolution for each stage in the start-plane operation, and smart power in power mode injects fuel over the nominal stage when driving uphill, and multi-talk and smart power are exchanged. Will be in (Trade-off).

Therefore, when multitalk and smart power are mixed, fuel economy reduction effect is insignificant and driving is not satisfactory.

The present invention has been made in view of the problems of the multi-torque and smart power mixed system of the conventional vehicle as described above, the purpose of which is to diversify the fuel economy mode / power mode for each driving pattern, as well as the characteristics of the vehicle model It is to provide a multi-torque and dual-power hybrid system to maximize the fuel efficiency of the vehicle that allows multi-torque and dual-power selection.

Multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention for achieving the above object is multi-torque for setting the maximum torque separately for each gear (TM) gear within the engine nominal torque range; Dual limiting the amount of fuel consumed for the surplus output depending on the load conditions of the vehicle by limiting the maximum (MAX) output per gear stage (TM) by operating at the fuel economy output, which is an output within the range of 70 to 90% of the nominal output in the entire engine area. It characterized in that the selective control of the engine torque and output power;

In the present invention, the switching between the multi-torque and the dual power may be configured through an external switch or an accelerator pedal switch, and may also be configured through an engine control unit (ECU) to which an accelerator pedal change signal is input.

Meanwhile, in the present invention, the multi-torque may be configured as a fuel-efficient type, the dual power may be configured as a power type, or the multi-talk may be configured as a power type, and the dual power may be configured as a fuel-efficient type.

According to the multi-torque and dual-power hybrid system for maximizing the fuel economy of the present invention, it is possible to distribute the dual power and the multi-torque appropriately to optimize fuel efficiency and perform power driving regardless of the load driving section and the high-altitude section. It can be greatly improved, and the fuel economy can be reduced by more than 2.2%, it is possible to obtain an effect such as to greatly improve the merchandise of the vehicle.

Hereinafter, the specific technical details of the present invention will be described in more detail with reference to the accompanying drawings.

Multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention includes a multi-torque for separately setting the maximum torque for each gear (TM) gear within the engine nominal torque range; Dual limiting the amount of fuel consumed for the surplus output depending on the load conditions of the vehicle by limiting the maximum (MAX) output per gear stage (TM) by operating at the fuel economy output, which is an output within the range of 70 to 90% of the nominal output in the entire engine area. Power; to selectively control the engine torque and output.

3 shows a flowchart of one embodiment of the present invention, and FIG. 4 shows a dual power output graph of the embodiment.

When the dual power is selected in the ELO (End Of Line) and the pedal instantaneous behavior is satisfied and the pedal reaches 100% as shown in FIG. 3, it is determined whether the external switch is applied. If the external switch is not applied, the condition soft switch is immediately determined.

If the condition soft switch is satisfied in the above, the kickdown determination inrush (XKICKDWN = 1) and the dual power inrush soft condition are met. The dual mode of power mode is applied, the kickdown determination inrush (XKICKDWN = 1) and the dual power inrush software. If the condition is not satisfied, multi-talk in fuel economy mode is applied.

On the other hand, if the condition soft switch is not satisfied, the kick-down judgment is not entered (XKICKDWN = 0) and the dual power inrush is met. If the soft condition is met, the multi-torque of the power mode is applied. If the inrush soft condition is not satisfied, the dual power of fuel economy mode is applied.

In the multi-torque and dual-power mixed system for maximizing the fuel efficiency of the vehicle of the present invention, the multi-torque and dual-power switching may be configured through an external switch or an accelerator pedal switch, and an engine in which an accelerator pedal change signal is input. It can also be configured to be through the control unit (ECU).

Multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle according to the characteristics of the vehicle while making the diversification of fuel economy mode / power mode for each driving pattern by supplementing the problems of the multi-torque and smart power for each gear stage Multitalk and dual power can be selected.

Multi-torque and dual-power hybrid system for maximizing fuel economy of the present invention allows dual power to be operated regardless of whether an external switch is applied or not, and according to the constant data (KXSWQTDUAL), each kickdown signal on / off It is possible to reverse the power mode / fuel economy mode.

That is, if the kick-down signal is turned on (XKICKDWN = 1) according to the data determination constant (KXSWQTDUAL) after applying EOL (End Of Line), ① If KXSWQTDUAL = 1, the output is multi-torque <dual power-multi-torque according to atmospheric pressure. Dual power regardless of atmospheric pressure can be used as nominal output. ② If KXSWQTDUAL = 0, output is multi-torque> dual power-nominal output using multi torque according to atmospheric pressure, and dual power without atmospheric pressure can be used as fuel economy type. Can be.

In addition, multi-torque and dual-power operation can be selected by the operator with an external switch and axel pedal switch or axel pedal behavior.

In other words, multi-talk and dual-power operation by axel pedal behavior can use multi-talk according to axel pedal behavior when dual power EOL is not applied, and in case of dual-power EOL, axel moment behavior change and 100% axel position If you are satisfied with it, you can get dual power operation.

In addition, the multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention is to enable the multi-torque / dual power release immediately according to the change of the pedal to enable the optimization of driving satisfaction and fuel economy improvement, pedal by atmospheric pressure It is sensitive to the operation of, and it applies dual power that can simultaneously operate fuel economy / power without reducing output.

As described above, when controlling the engine output by only the multi-talk, there is a lack of output and start-up dissatisfaction, and if only smart power is applied, there is a problem of excessive fuel economy, and when the multi-talk and smart power are jointly applied, the fuel efficiency effect is insignificant. There is a problem.

In the multi-torque and dual-power mixed system for maximizing the fuel efficiency of the vehicle of the present invention, the multi-torque mode controls the atmospheric pressure, the engine speed, and the multi-torque by the number of stages as the output mode considering the gear stage and the altitude air pressure, and the dual power The output is only mapped with gear stage and engine speed.

Logic Constant Condition [KXSWQTDUAL] = 1 [KXSWQTDUAL] = 0 XKICKDOWN One 0 One 0 Control result Dual power mode Multi-talk mode Multi-talk mode Dual power mode Print Power type Fuel economy Power type Fuel economy * It is possible to map power type and fuel economy map according to logic constant condition.

As described above, in the present invention, in the multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle, the multi-torque is configured as a fuel economy type, the dual-power is configured as a power type, or the multi-torque is configured as a power type, and the dual-power is a fuel-efficient type. Can be configured

In the multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention, the transmission (TM) each stage is operated by driving at the fuel efficiency output which is an output within the range of 70 to 90% of the nominal power in the entire engine area for the purpose of reducing fuel efficiency during normal driving. Limits the maximum output of each power and limits the amount of fuel required for the surplus output depending on the load condition of the vehicle.It also uses the KICK-DOWN pedal signal or the USER SELECTION SWITCH as the nominal output when entering the power mode. Power to drive.

Limiting the amount of fuel consumed for the surplus output according to the load conditions of the vehicle by limiting the maximum (MAX) output of each transmission (TM) stage, it is possible to improve the fuel economy, the actual fuel test results of more than 2.2% This was confirmed.

In addition, in the multi-torque and dual-power hybrid system for maximizing the fuel efficiency of the vehicle of the present invention, the driver can freely select the power (output) mode or the fuel efficiency mode according to the vehicle driving conditions or the intention of the driver. You will be able to meet your needs.

That is, at least two outputs are operated under vehicle driving conditions and driver selection, and in the case of fuel-efficient type, it is possible to prevent unnecessary output with the output smaller than the engine nominal output. It can be maximized.

The present invention described above is not limited to the above-described embodiments and drawings, and various permutations, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

1 is a conceptual diagram of a conventional multi-talk and smart power mixing system

Figure 2 is an output graph of the conventional multi-talk and smart power hybrid system

1 is a longitudinal sectional view of a main portion of a conventional cup holder for a vehicle

3 is a flowchart of one embodiment of the present invention.

4 is a dual power output graph of the embodiment

Claims (5)

delete delete delete Multi-torque for separately setting the maximum torque for each gear stage within the engine nominal torque range; Dual limiting the amount of fuel consumed for the surplus output depending on the load conditions of the vehicle by limiting the maximum (MAX) output per gear stage (TM) by operating at the fuel economy output, which is an output within the range of 70 to 90% of the nominal output in the entire engine area. In the multi-torque and dual-power mixed system for maximizing the fuel efficiency of the vehicle, characterized in that the selective control of the engine torque and output through the power; The multi-torque and dual-power hybrid system for maximizing the fuel economy of the vehicle, characterized in that the multi-torque is configured as a fuel economy type, and the dual power is configured as a power type. Multi-torque for separately setting the maximum torque for each gear stage within the engine nominal torque range; Dual limiting the amount of fuel consumed for the surplus output depending on the load conditions of the vehicle by limiting the maximum (MAX) output per gear stage (TM) by operating at the fuel economy output, which is an output within the range of 70 to 90% of the nominal output in the entire engine area. In the multi-torque and dual-power mixed system for maximizing the fuel efficiency of the vehicle, characterized in that the selective control of the engine torque and output through the power; The multi-torque and dual-power hybrid system for maximizing the fuel economy of the vehicle, characterized in that the multi-torque is configured as a power type, and the dual power is configured as a fuel economy type.

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