Electric vehicle
The electric vehicle addresses the challenge of smooth movement in hand-push mode by using a detection unit to manage three operational modes, ensuring efficient speed adjustment and motor assist based on road conditions.
Patent Information
- Application Number
- JP2023176236
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-10-11
- Publication Date
- 2025-04-23
AI Technical Summary
Existing electric vehicles face challenges in maintaining smooth movement when switching to a hand-push mode, particularly due to road conditions, as it can be difficult to adjust the speed effectively.
The electric vehicle incorporates a detection unit to sense hand-pushing input values and operates in three modes: a first mode with a maximum speed based on throttle operation, a second mode with a slower speed, and a third mode where the motor assists hand-pushing based on detected input values.
This configuration allows operators to select appropriate modes according to road conditions, ensuring smooth movement and reducing operator burden by adjusting motor assist based on hand-pushing input.
Smart Images

Figure 2025066550000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to an electric vehicle. [Background technology]
[0002] Conventionally, there is known an electric vehicle that can be switched between an electric drive mode in which the vehicle runs by being driven by an electric motor and a push mode in which the vehicle can be moved by being pushed by hand. It is also disclosed that when the push mode is selected, auxiliary power is generated by the motor. It is also disclosed that the vehicle can be moved by operating the accelerator lever in the push mode. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2018-111439 A [Patent Document 2] JP 2000-166025 A [Patent Document 3] JP 2003-320935 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, when only one push mode is selected, it is difficult to move smoothly depending on the road conditions. For example, when using the accelerator lever in the push mode, it takes time to turn the vehicle.
[0005] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an electric vehicle that can move smoothly in an appropriate mode depending on the road surface condition and road conditions. [Means for solving the problem]
[0006] In order to achieve the above-mentioned object, the electric vehicle of the present invention comprises a detection unit that detects an input value of hand-pushed movement; a selection unit that selects between a first mode in which the motor is driven based on throttle operation with a first speed as an upper limit, a second mode in which the motor is driven based on throttle operation with a second speed slower than the first speed as an upper limit, and a third mode in which the motor is driven based on the input value; and a control unit that, when the first mode is selected, drives the motor based on the throttle operation with the first speed as an upper limit, and when the second mode is selected, drives the motor based on the input value.
[0007] According to this configuration, the first to third modes can be appropriately selected, allowing the operator to select an appropriate mode according to road conditions, thereby enabling smooth movement of the electric vehicle. Effect of the Invention
[0008] According to the present invention, an operator can select the first mode to the third mode depending on road conditions, thereby enabling smooth movement of the electric vehicle. [Brief description of the drawings]
[0009] [Figure 1] 1 is an external view of an electric vehicle according to an embodiment of the present invention. [Diagram 2] 1 is a block diagram showing a configuration of an electric vehicle according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a front perspective view of a box unit constituting an electric vehicle according to an embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view of the left side of a detection unit constituting the electric vehicle according to one embodiment of the present invention. [Diagram 5] 5 is a flowchart showing an operation flow from start-up of an electric vehicle according to an embodiment of the present invention to selection of a desired mode. [Figure 6] 5 is a flowchart showing the flow of operations when a first mode is selected in the electric vehicle according to one embodiment of the present invention. [Figure 7] 5 is a flowchart showing the flow of operations when a second mode of the electric vehicle according to one embodiment of the present invention is selected. [Figure 8] 6 is a flowchart showing the flow of operations when a third mode is selected in the electric vehicle according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, a case will be described in which the electric vehicle is an electric wheelchair.
[0011] <Electric vehicle configuration> Fig. 1 is an external view of an electric vehicle 1 according to an embodiment. As shown in Fig. 1, the electric vehicle 1 includes a vehicle body 100, a seating section 4 fixed to the vehicle body 100 and on which a rider can sit, a handlebar section 11 that can be operated by the rider, a front wheel WF rotatably connected to the vehicle body 100 below the handlebar section 11, and a rear wheel WR as a drive wheel rotatably connected to the vehicle body 100 below the seating section 4. A motor 90 (not shown in Fig. 1) is mounted inside the vehicle body 100 below the seating section 4, and a control section 51 (not shown in Fig. 1) is mounted inside the vehicle body 100 below the handlebar section 11. The rear wheel WR is driven in the front-rear direction by the motor 90.
[0012] The handle section 11 includes a handlebar, a throttle pipe 12 that allows throttle operation, and a meter section 14 provided in the center of the handlebar. A safety release switch 30 and a reverse switch 20 are provided on the rear face of the meter section 14. The safety release switch 30 and the reverse switch 20 will be described later.
[0013] A key switch 82 for starting the electric vehicle 1 and a first seating sensor 41 are provided on the vehicle body 100 below the meter section 14. The first seating sensor 41 projects light toward the rear where the seating section 4 is located. The safety release switch 30 is provided on the rear surface of the meter section 14. The rear surface of the meter section 14 may be partially cut forward to provide a recess, and the safety release switch 30 may be provided in the recess (not shown). This makes it difficult for a passenger to press the switches by mistake.
[0014] The seating section 4 has a seat surface section 5 on which the occupant sits, a backrest section 3 that supports the back of the occupant, and an armrest section 2 on which the occupant can rest their elbows. The armrest section 2 is equipped with a second seating sensor 42 that can measure the rotation angle of the armrest section 2. An opening is provided on the rear surface of the backrest section 3, and a box unit 65 is attached to the opening around a rotation shaft 62.
[0015] When the box unit 65 is operated forward or backward by the operator, the control unit 51 can output a signal to control the motor 90. When the box unit 65 is pushed forward by the operator, the control unit 51 outputs a control signal to drive the motor 90 in the forward direction, and when the box unit 65 is pulled backward by the operator, the control unit 51 outputs a control signal to drive the motor 90 in the reverse direction.
[0016] The box unit 65 includes a manual clutch release unit 60 and a detection unit 70 that detects an input value of manual push movement. The manual clutch release unit 60 releases the clutch when a clutch wire 64 is pulled by operating a clutch lever 61. The box unit 65 will be described in detail later.
[0017] <System configuration> Fig. 2 is a block diagram showing the configuration of an electric vehicle 1 according to an embodiment. As shown in Fig. 2, the electric vehicle 1 includes a first seating sensor 41, a second seating sensor 42, a safety release switch 30, a key switch control unit 81, a battery 80, an ECU 50 (Electronic Control Unit), an accelerator sensor 10, a reverse switch 20, a manual clutch release unit 60 provided in a box unit 65, a motor driver 91, a motor 90, a front pressure sensor 71F, and a rear pressure sensor 71R.
[0018] The battery 80 is used for propelling the electric vehicle 1, etc.
[0019] The ECU 50 includes a central processing unit (CPU), a non-volatile memory such as a flash memory, and a volatile memory such as a random access memory (RAM). The ECU 50 includes a control unit 51 and a selection unit 52.
[0020] The selection unit 52 makes it possible to select from a first mode in which the motor 90 is driven to travel at a first speed, for example up to 6 km / h, based on the throttle operation of the throttle pipe 12 by the driver, a second mode in which the motor 90 is driven to travel at a second speed slower than the first speed, for example up to 2 km / h, based on the throttle operation of the throttle pipe 12 by the operator, and a third mode in which the motor 90 is driven to assist in manual movement based on an input value to a detection unit 70 provided in the box unit 65. The throttle pipe 12 may be a throttle lever.
[0021] When the first mode is selected, the control unit 51 drives the motor 90 at a first speed, for example, up to a maximum speed of 6 km / h, based on the throttle operation of the throttle pipe 12 by the driver; when the second mode is selected, the control unit 51 drives the motor 90 at a second speed, for example, up to a maximum speed of 2 km / h, based on the throttle operation of the throttle pipe 12 by the operator; and when the third mode is selected, the control unit 51 controls the drive of the motor 90 based on the manual push input value applied to the detection unit 70.
[0022] The driver is a person who sits on the seat 4 and drives the electric vehicle 1 by operating the throttle pipe 12. The operator is a person who moves the electric vehicle 1 by operating the throttle pipe 12 or pushing it by hand, even if he or she is not sitting on the seat 4.
[0023] The electric vehicle 1 has, for example, a first mode, a second mode, and a third mode in order to enable smooth movement according to road surface conditions and road conditions.
[0024] The first mode is a mode in which the driver sits on the seat 4 and drives by operating the throttle. The second mode is a mode in which the operator can move the electric vehicle 1 by operating the throttle. The third mode is a mode in which the motor 90 is driven based on the hand-push input value applied to the detection unit 70 to assist the hand-push movement.
[0025] The key switch 82 is a starter switch provided on the electric vehicle 1 and is operated by turning a key.
[0026] The key switch control unit 81 receives an ON signal from the key switch 82. The key switch control unit 81 determines whether the remaining battery charge at the time of startup is equal to or lower than a predetermined threshold, and outputs to the control unit 51 remaining battery charge information indicating whether the remaining battery charge is equal to or lower than the predetermined threshold.
[0027] The motor 90 is a drive motor that generates power for running the vehicle. The motor 90 is controlled by a motor driver 91. The motor 90 is capable of rotating in the forward or reverse direction.
[0028] The safety release switch 30 is capable of acquiring detection information output from the first seating sensor 41 and the second seating sensor 42, which are the detection unit 40. The safety release switch 30 is an example of a second mode selection unit, and when the safety release switch 30 is turned ON, the detection information by the detection unit 40 is not acquired.
[0029] The first seating sensor 41 is an example of a detection unit. The first seating sensor 41 is a transmission sensor and can detect the presence or absence of an occupant by projecting light. The first seating sensor 41 outputs a signal indicating the presence or absence of an occupant to the control unit 51.
[0030] The second seating sensor 42 is an example of a detection unit. The second seating sensor 42 is an inclination sensor and can detect whether or not an occupant is seated based on the inclination angle. The second seating sensor 42 outputs a signal indicating whether or not an occupant is seated to the control unit 51.
[0031] The detection unit 70 includes a front pressure sensor 71F and a rear pressure sensor 71R. The front pressure sensor 71F detects the input value of a forward push movement. The rear pressure sensor 71R detects the input value of a rearward push movement. The detection unit 70 outputs the detected values to the control unit 51.
[0032] The accelerator sensor 10 is capable of acquiring a throttle opening based on the rotation of the throttle pipe 12. The accelerator sensor 10 is capable of rotating the motor 90 in the normal direction based on the throttle operation.
[0033] When the reverse switch 20 is pressed, the reverse switch 20 can obtain a throttle opening based on the rotation of the throttle pipe 12. The reverse switch 20 can rotate the motor 90 in the reverse direction based on the throttle operation.
[0034] The manual clutch release unit 60 is an example of a third mode selection unit, and is a release unit that releases the clutch by operating the clutch lever 61.
[0035] 3 is a perspective view of the front of the box unit 65. The box unit 65 is configured as a separate body from the backrest portion 3. The box unit 65 is attached to the backrest portion 3 so as to be swingable back and forth about a rotation shaft 62.
[0036] When the box unit 65 is pushed forward by the operator, the control unit 51 outputs a control signal to the motor driver 91 to rotate the motor 90 in the forward direction. The motor driver 91 drives the motor 90 in the forward direction in response to the control signal from the control unit 51. On the other hand, when the box unit 65 is pulled backward by the operator, the control unit 51 outputs a control signal to the motor driver 91 to rotate the motor 90 in the reverse direction. The motor driver 91 drives the motor 90 in the reverse direction in response to the control signal from the control unit 51.
[0037] The box unit 65 includes a manual clutch release unit 60 and a detection unit 70. When the operator operates the manual clutch release unit 60, the control unit 51 determines that the third mode has been selected in the box unit 65. When it is determined that the third mode has been selected, the control unit 51 outputs a control signal for controlling the motor 90 to the motor driver 91 based on an input value to the detection unit 70 by the operator's manual push.
[0038] As shown in FIG. 3, the manual clutch release unit 60 has a clutch lever 61 , a clutch wire 64 that operates in conjunction with the operation of the clutch lever 61 , and a microswitch 63 .
[0039] The clutch lever 61 is attached to the box unit 65 around a rotation axis that is rotatable relative to the box unit 65. When the clutch lever 61 is lifted upward, the clutch wire 64 is pulled in conjunction with the rotational movement of the clutch lever 61.
[0040] The manual clutch release unit 60 releases the clutch when the clutch wire 64 is pulled. When the manual clutch release unit 60 is released, the electric vehicle 1 can be pushed by hand. When the clutch lever 61 is lifted upward, the microswitch 63 is pressed in conjunction with the operation of the clutch lever 61. When the microswitch 63 is pressed, the detection unit 70 enters a detection-enabled state.
[0041] The detection unit 70 is a detection unit capable of detecting an input value due to a manual push applied to the front pressure sensor 71F or the rear pressure sensor 71R. The detection unit 70 detects an input value according to the direction of the manual push applied to the front pressure sensor 71F or the rear pressure sensor 71R and the amount of movement (stroke amount) due to the manual push. Based on the input value detected by the detection unit 70, the control unit 51 outputs a control signal to the motor driver 91 to instruct the motor 90 to rotate in the forward direction or the reverse direction.
[0042] When the box unit 65 is pushed forward, the detection unit 70 detects an input value corresponding to the direction of the push applied to the front pressure sensor 71F and the amount of movement (stroke amount) caused by the push. The control unit 51 outputs a control signal to the motor driver 91 to instruct the motor 90 to rotate in the normal direction, based on the input value detected by the front pressure sensor 71F.
[0043] When the box unit 65 is pulled backward, the detection unit 70 detects an input value corresponding to the direction of the push applied to the rear pressure sensor 71R and the amount of movement (stroke amount) caused by the push. The control unit 51 outputs a control signal to the motor driver 91 to instruct the motor 90 to drive in the reverse direction, based on the input value detected by the rear pressure sensor 71R.
[0044] 4 is a perspective view of the left side of the detection unit 70. The detection unit 70 will be described in detail with reference to FIG.
[0045] As shown in FIG. 4, the detection section 70 has an H-shaped rib 74 extending from a part of the box unit 65, a guide plate 72 fastened to the backrest section 3, a front pressure sensor 71F provided between the H-shaped rib 74 and the guide plate 72, a rear pressure sensor 71R and elastic members 73F, 73R.
[0046] The guide plate 72 is formed by extending above the H-shaped rib 74. The front pressure sensor 71F, the rear pressure sensor 71R, and the elastic members 73F, 73R are provided in pairs in front of and behind the H-shaped rib 74. An example of the elastic members 73F, 73R is a coil spring. The front pressure sensor 71F, the rear pressure sensor 71R, and the elastic members 73F, 73R are attached to either the H-shaped rib 74 or the guide plate 72.
[0047] <Detection method> The detection unit 70 detects an input value corresponding to the pushing direction and the amount of movement (stroke amount) caused by the pushing in response to the operation of the clutch lever 61. That is, when the box unit 65 is pushed forward around the rotation shaft 62, the detection unit 70 detects an input value corresponding to the pushing direction and the amount of movement (stroke amount) caused by the pushing that the H-shaped rib 74 applies to the front pressure sensor 71F. As a result, the control unit 51 outputs a control signal to the motor driver 91 to instruct the motor 90 to rotate in the normal direction, based on the input value corresponding to the pushing direction and the amount of movement (stroke amount) caused by the pushing input to the front pressure sensor 71F.
[0048] When the box unit 65 is pulled rearward around the rotation shaft 62, the detection unit 70 detects an input value corresponding to the direction of the push applied by the H-shaped rib 74 to the rear pressure sensor 71R and the amount of movement (stroke amount) caused by the push. Based on the input value received from the rear pressure sensor 71R, the control unit 51 outputs a control signal to the motor driver 91 to instruct the motor 90 to rotate in the reverse direction.
[0049] The front pressure sensor 71F and the rear pressure sensor 71R can be various sensors capable of detecting pressure, but in this embodiment, a load cell is used. The front pressure sensor 71F and the rear pressure sensor 71R detect the magnitude of pressure acting by directly contacting the H-shaped rib 74. Therefore, the pressure value detected by the front pressure sensor 71F and the rear pressure sensor 71R increases or decreases according to the magnitude of the operation amount acting by pushing by hand.
[0050] The above is the configuration and system configuration of the electric vehicle 1. Next, details of the control of the electric vehicle 1 according to the present invention will be described below with reference to the flowcharts of FIGS.
[0051] <Control flow from start-up to mode selection> Next, the operation of the electric vehicle 1 according to the embodiment will be described. The electric vehicle 1 according to the embodiment is capable of selecting one of a first mode, a second mode, and a third mode based on information from sensors, etc. When the first mode is selected, the electric vehicle 1 travels by driving the motor at a first speed, i.e., up to 6 km / h, based on the throttle rotation operation of the throttle pipe 12 by the driver, when the second mode is selected, the electric vehicle moves by driving the motor at a second speed, i.e., up to 2 km / h, based on the throttle rotation operation of the throttle pipe 12 by the operator, when the third mode is selected, the electric vehicle drives the motor based on an input value input to the detection unit 70 by the operator pushing or pulling the electric vehicle, thereby providing auxiliary control for the operator.
[0052] This allows the user to select the desired operation mode from the first, second, or third modes at any time depending on the situation. This allows the operator to select the appropriate mode depending on the road conditions, allowing the electric vehicle to move smoothly.
[0053] 5 is a flowchart showing the flow of operations from starting the electric vehicle 1 according to the embodiment to selecting each mode. As shown in FIG 5, the key switch control unit 81 receives an input that the key switch 82 has been turned on (step S1).
[0054] Next, the key switch control unit 81 determines whether or not there is any remaining battery power (step S2).
[0055] When it is determined that the remaining battery charge is equal to or less than the threshold value (no in step S2), the key switch control unit 81 turns off the power (step S3).
[0056] When it is determined that the remaining battery charge exceeds the threshold value (Yes in step S2), the key switch control unit 81 starts up the ECU 50 (step S4).
[0057] The control unit 51 determines whether the safety release switch 30 has been pressed (step S5).
[0058] When it is determined that the safety release switch 30 has been pressed (ON in step S5), the control unit 51 proceeds to determine whether or not a second remaining battery charge, which is a higher threshold value, is equal to or lower than a threshold value (step S6).
[0059] When the control unit 51 determines that the second battery remaining amount is equal to or less than the threshold (No in step S6), the control unit 51 proceeds to the process of step S7 (step S7). When the control unit 51 determines that the second battery remaining amount is greater than the threshold (Yes in step S6), the control unit 51 proceeds to the process of the second mode (step S200).
[0060] When the control unit 51 determines that the safety release switch 30 has not been pressed (OFF in step S5), the control unit 51 proceeds to determine whether the manual clutch release unit 60 has been operated (step S7).
[0061] When the control unit 51 determines that the manual clutch release unit 60 has not been operated (OFF in step S7), the control unit 51 proceeds to the first mode process (step S100). When the control unit 51 determines that the manual clutch release unit 60 has been operated (ON in step S7), the control unit 51 proceeds to the third mode process (step S300).
[0062] <Control flow when the first mode is selected> Fig. 6 is a flowchart showing the flow of operations when the first mode of the electric vehicle 1 according to the embodiment is selected. As shown in Fig. 6, when the first mode is selected, the control unit 51 makes a determination based on the seating detection by the first seating sensor 41 (step S101).
[0063] When the control unit 51 determines that no seating is detected (OFF in step S101), it waits (step S107). When the control unit 51 determines that a seating is detected (ON in step S101), it proceeds to a determination based on the seating detection by the second seating sensor 42 (step S102).
[0064] When the control unit 51 determines that the second seating sensor 42 has not detected a seated person (OFF in step S102), it goes into standby (step S108). When the control unit 51 determines that the second seating sensor 42 has detected a seated person (ON in step S102), it goes to determine whether the reverse switch 20 has been pressed (step S103).
[0065] When the control unit 51 determines that the reverse switch 20 is pressed (step S103: ON), it performs motor reverse rotation based on the throttle operation (step S104).When the control unit 51 determines that the reverse switch 20 is not pressed (step S103: OFF), it proceeds to determine whether the accelerator sensor 10 has detected the throttle operation (step S105).
[0066] When the control unit 51 determines that the accelerator sensor 10 has not detected a throttle operation (OFF in step S105), it waits (step S109). When the control unit 51 determines that the accelerator sensor 10 has detected a throttle operation (ON in step S105), it performs forward rotation of the motor based on the throttle operation (step S106).
[0067] <Control flow when the second mode is selected> Fig. 7 is a flowchart showing the flow of operations when the second mode of the electric vehicle 1 according to the embodiment is selected. As shown in Fig. 7, when the second mode is selected, the control unit 51 determines whether the reverse switch 20 is pressed (step S201).
[0068] When the control unit 51 determines that the reverse switch 20 is pressed (step S201: ON), it performs motor reverse rotation based on the throttle operation (step S202).When the control unit 51 determines that the reverse switch 20 is not pressed (step S201: OFF), it proceeds to determining whether the accelerator sensor 10 has detected the throttle operation (step S203).
[0069] When the control unit 201 determines that the accelerator sensor 10 has not detected a throttle operation (OFF in step S203), it waits (step S205). When the control unit 201 determines that the accelerator sensor 10 has detected a throttle operation (ON in step S203), it performs forward rotation of the motor based on the throttle operation (step S204).
[0070] <Control flow when the third mode is selected> Fig. 8 is a flowchart showing the flow of operations when the third mode of the electric vehicle 1 according to the embodiment is selected. As shown in Fig. 8, when the third mode is selected, the control unit 51 determines whether the front pressure sensor 71F exceeds a threshold value (step S301).
[0071] When the control unit 51 determines that the front pressure sensor 71F exceeds the threshold value (step S301: +), it performs forward rotation of the motor based on the pressure sensor value (step S302).When the control unit 51 determines that the front pressure sensor 71F is equal to or less than the threshold value (step S301: -), it proceeds to determine whether the rear pressure sensor 71R exceeds the threshold value (step S303).
[0072] When the control unit 51 determines that the rear pressure sensor 71R exceeds the threshold value (step S303: +), it performs reverse motor rotation based on the pressure sensor value (step S304).When the control unit 51 determines that the rear pressure sensor 71R is equal to or less than the threshold value (step S303: -), it waits (step S305).
[0073] <Effects of this embodiment> As described above, the electric vehicle 1 of this embodiment includes a detection unit 70 that detects an input value for hand-pushed movement, a selection unit 52 that selects between a first mode in which the motor 90 is driven based on throttle operation with a first speed as an upper limit, a second mode in which the motor 90 is driven based on throttle operation with a second speed slower than the first speed as an upper limit, and a third mode in which the motor 90 is driven based on the input value, and a control unit 51 that, when the first mode is selected, drives the motor 90 based on throttle operation with the first speed as an upper limit, when the second mode is selected, drives the motor 90 based on the throttle operation with the second speed as an upper limit, and when the third mode is selected, drives the motor 90 based on the input value.
[0074] This allows the user to select a desired operation mode from the first, second, or third modes at any time depending on the situation. This allows the operator to select an appropriate mode depending on the road conditions, thereby enabling smooth movement of the electric vehicle. For example, by selecting the second mode, the operator can move by operating the throttle when traveling uphill or over long distances, reducing the burden on the operator. Furthermore, by selecting the third mode, smooth movement is possible on roads or in places where turning is required. Furthermore, the amount of motor assist can be changed based on the input value of the hand push, reducing the burden on the operator.
[0075] Furthermore, the detection unit 40, which detects the boarding of a passenger, and the selection unit 52, when detecting the boarding, are capable of selecting the first mode. As a result, for example, when the boarding is detected, the first mode is selected, and the motor 90 can be driven by the passenger. This allows the driver to move the electric vehicle smoothly.
[0076] Furthermore, when the remaining battery charge is equal to or lower than a predetermined level, the control unit 51 drives the motor 90 in the first mode or the third mode. This allows the motor 90 to be driven in the first mode or the third mode, for example, when the remaining battery charge is equal to or lower than a predetermined level. Therefore, the operator can smoothly push the electric vehicle by selecting an appropriate mode according to road conditions.
[0077] The electric vehicle of the present invention has been described above as an embodiment, but the electric vehicle of the present invention can be modified in various ways.
[0078] Although the present embodiment has been described with reference to an electric vehicle, the present invention is not limited to this. For example, the present invention can be applied to a pushcart supported by a driving source such as a motor, a senior car, a golf cart, a mobile vehicle used in a baseball stadium, a tricycle, a cart, etc.
[0079] Although the embodiment of the present invention has been described above, the above-mentioned embodiment is presented as an example and is not intended to limit the scope of the present invention. This new embodiment can be embodied in various other forms. In addition, various omissions, substitutions, and modifications can be made without departing from the gist of the invention. In addition, this embodiment is included in the scope and gist of the invention, and is included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]
[0080] 1:Electric vehicle 40: Detection unit (seating sensor) 51: Control unit 52: Selection section 70: Detection unit 90:Motor
Claims
1. A detection unit for detecting an input value of a manual push movement; a selection unit that selects from a first mode in which the motor is driven based on a throttle operation with a first speed as an upper limit, a second mode in which the motor is driven based on a throttle operation with a second speed as an upper limit that is slower than the first speed, and a third mode in which the motor is driven based on the input value; a control unit that drives a motor based on the throttle operation with the first speed being an upper limit when the first mode is selected, drives a motor based on the throttle operation with the second speed being an upper limit when the second mode is selected, and drives a motor based on the input value when the third mode is selected; An electric vehicle equipped with
2. A detection unit that detects whether an occupant is in the vehicle; The selection unit enables selection of the first mode when the boarding is detected. The electric vehicle according to claim 1.
3. The control unit drives the motor based on the first mode or the third mode when a remaining battery charge is equal to or less than a predetermined level. The electric vehicle according to claim 1.
Citation Information
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